Stim Toys and Fidgets

Bumpy Caterpillar Keychain


A wriggly jiggly caterpillar that you can attach to your bag or keys.

This little critter packs a wide variety of tactile feedback options in a small package. The five section body is made of solid squishable rubber and covered in tiny soft spikes. Four rubbery legs protrude from each side and two firm antennae top off a smooth smiling face.

Note: Your caterpillar will last the longest if it's used for light stimming and not stretched or pulled on.

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Additional Info


  • Size: 3" (7.6 cm) long, 1" (2.5 cm) thick
  • Materials: Soft rubber (solid); metal key ring and chain
  • Note: Your caterpillar will initially smell like rubber and this scent may transfer to your hands during use. Airing it out will reduce the scent. Avoid storing in direct sunlight or high temperatures. To prevent tearing, avoid stretching or pulling, especially where the chain is attached to the caterpillar's head. 
  • WARNING: Choking Hazard - Small parts. Not for children under 3 years.

The above is a demo video of stimming with a bumpy caterpillar  to show how much stress it can tolerate without breaking. The second caterpillar I show is one that I accidentally tore the keyring off. Just showing that it's still usable as a fidget but if you want to preserve the keyring, be really careful about not putting too much stress on the area where it attaches to the head.