Affiliate note: The Kthulu is sold and shipped by Mr Hankey's Toys, not by TheDildoHub. We may earn a commission if you buy through the links on this page,
at no extra cost to you. Full details:
MrHankeysToys Affiliate & Partnership Disclosure.
A Closer Look at the Kthulu Tentacle Fantasy Dildo
Folks, the Kthulu is Mr Hankey's Toys at their most gleefully unhinged — a handcrafted, Lovecraftian tentacle dildo built around a knobby, bulbous head and rows of squid-like feelers that spiral down a thick, textured shaft. It's a fantasy dildo made for people who want sensation with a story: dramatic to look at, seriously textured to use, and offered in five sizes so you can match it to your experience rather than your nerve. Beneath the cosmic-horror theatrics, it's a genuinely well-made piece of platinum-cured silicone — and the detail below will help you pick the right size and use it safely.
Quick answer The Kthulu is a handcrafted, platinum-cured silicone fantasy tentacle dildo from Mr Hankey's Toys, available in five sizes (XS to XXL). It features a knobby head and squid-like tentacle texture, with a strap-on-compatible base on the Small and Medium. Sizing is substantial and runs large fast — XS has a 6.5" mid-circumference, while XXL reaches nearly 13". Hand-poured custom colors are available. Bought from Mr Hankey's via the links on this page.
What is a tentacle dildo? A fantasy-style toy shaped around twisting, sucker- or feeler-lined tentacles rather than realistic anatomy. The appeal is texture and imaginative roleplay — rolling ridges and an irregular head create varied sensation as the toy moves, which is why fantasy pieces like the Kthulu are usually chosen for the experience rather than realism.
Key Features — Kthulu
| Lovecraftian tentacle design |
Knobby, bulbous head and squid-like feelers running down a ridged, swirling shaft for progressive, rolling texture |
| Five sizes (XS–XXL) |
A genuinely wide range — from an approachable XS to a very advanced XXL. Full measurements in the size chart below |
| Platinum-cured silicone |
Body-safe, non-porous, hypoallergenic silicone — no pores to trap bacteria, and easy to clean thoroughly |
| Hand-poured custom colors |
Choose colorways such as abyssal black or deep-sea green to suit the look you're after |
| Strap-on compatible (Small & Medium) |
Small fits a 2.5" O-ring; Medium fits a 3.0" O-ring. Larger sizes are not listed with a strap-on ring |
| Made by Mr Hankey's Toys |
A well-known specialist in large, high-detail fantasy silicone toys |
Size Chart — Pick the Right Kthulu
Measurements are from Mr Hankey's Toys. This toy runs large quickly, so check the circumferences, not just the length — girth is what most people feel first.
| Size |
Head circ. |
Middle circ. |
Base circ. |
Insertable |
Overall |
Strap-on ring |
| XS |
5" / 12.7 cm |
6.5" / 16.5 cm |
5.5" / 14 cm |
6.4" / 16.3 cm |
7.63" / 19.4 cm |
— |
| Small |
6.5" / 16.5 cm |
7.75" / 19.7 cm |
6.38" / 16.2 cm |
7.5" / 19.1 cm |
9.5" / 24.1 cm |
2.5" / 6.35 cm |
| Medium |
8" / 20.3 cm |
9.5" / 24.1 cm |
8" / 20.3 cm |
9.5" / 24.1 cm |
11.13" / 28.3 cm |
3.0" / 7.62 cm |
| Large |
9.38" / 23.8 cm |
11.13" / 28.3 cm |
9.5" / 24.1 cm |
11" / 27.9 cm |
12.63" / 32.1 cm |
— |
| XXL |
10.88" / 27.6 cm |
12.88" / 32.7 cm |
11" / 27.9 cm |
12.5" / 31.8 cm |
14.25" / 36.2 cm |
— |
Texture across all sizes: knobby head and squid-like tentacles.
Who It's For
A good match if you…
- Love pronounced, varied texture and a fantasy aesthetic
- Know your comfortable girth and can match it to the chart
- Want strap-on compatibility (Small or Medium)
- Enjoy mythos roleplay, cosplay, or monster-kink play
Size down — or start elsewhere — if you…
- Are new to insertable toys: even the XS has a 6.5" mid-circumference
- Prefer smooth shafts over heavy texture
- Are unsure on girth — measure against a toy you already own
- Want something pocket-sized; the Kthulu is a statement piece
General guidance only — comfort varies person to person. When in doubt, choose the smaller size: you can always size up later, but you can't return a toy you've already tried.
Material & Body Safety
What it's made of, and why it matters
-
Material: platinum-cured silicone (per Mr Hankey's Toys) — the higher-grade silicone cure, valued for purity and durability
-
Body-safe & non-porous: no microscopic pores to harbor bacteria, so it can be cleaned thoroughly between uses; hypoallergenic
-
Lube compatibility — read this: Mr Hankey's lists the Kthulu as compatible with water-based, silicone-based, and specialty lubes. As a general rule, silicone lube can react with silicone toys, so the cautious choice is a quality water-based lube. If you want to use silicone lube, spot-test on the base first and follow Mr Hankey's care guidance.
-
Cleaning: wash with warm water and mild soap after each use, taking care to clean inside the textured recesses, then air-dry fully
-
Storage: store dry and on its own, ideally in a sealed container, away from other silicone toys
Material & safety information last reviewed: 05/31/2026, based on Mr Hankey's Toys product specifications.
What to Expect & How to Use It
The Kthulu doesn't just slide in — the irregular head and tentacle ridges give you texture that shifts as you move, which is the whole point of a fantasy piece like this. Expect stretch and fullness that build, especially from Medium up.
-
Lube generously and reapply — textured shafts need more than smooth ones
-
Warm up first, particularly for anal play, and never force depth or girth
-
Start with the smaller size if you're between two; the circumferences climb fast across the range
-
For strap-on play (Small/Medium), match the listed O-ring size to your harness
-
Go slow with the bulbous head — it's the widest point of entry on most sizes
FAQs — Kthulu
Which size should a first-timer choose?
The XS is the entry point, but it's still substantial at a 6.5" middle circumference. If you're newer to texture or girth, the XS is the sensible start — and if you're between sizes anywhere in the range, size down.
What's it made of, and is it body-safe?
Platinum-cured, hypoallergenic silicone, per Mr Hankey's Toys. It's non-porous, so it doesn't trap bacteria and can be cleaned thoroughly. See the Material & Body Safety section above for full detail.
Can I use silicone lube with it?
Mr Hankey's lists it as silicone-lube compatible, which is unusual for silicone toys. To be safe, a quality water-based lube is the low-risk choice. If you prefer silicone lube, spot-test on the base first and follow Mr Hankey's guidance.
Is it strap-on compatible?
The Small and Medium are listed with strap-on rings (2.5" and 3.0" respectively). The XS, Large, and XXL are not listed with a strap-on ring size.
How do I buy it, and who ships it?
The Kthulu is sold and shipped by Mr Hankey's Toys. Use the links on this page to view current sizes, colors, and pricing and to complete your order on their site. We may earn a commission at no extra cost to you.
Call the Deep
If you've ever wanted a fantasy piece with real presence — proper texture, a striking look, and a size for almost every level of experience — the Kthulu delivers. Check the size chart, pick your colorway, and head over to Mr Hankey's Toys to make it yours.
Please note: Product details, specifications, sizing, colors, availability, and pricing shown here are based on information from Mr Hankey's Toys and may have changed since this page was last updated. A product may also be discontinued without our knowledge. Always confirm the current details on Mr Hankey's Toys before completing your purchase.
