Fingers. He looked like my hand because I was a silly goober who thought imaginary friends were dumb, but had no issue with anthropomorphizing my own hand.

When I was younger, my imaginary friend’s name was Tony. Couldn’t tell you what he looked like though.

But I couldn’t stop laughing the first time I saw this on Malcolm in the Middle https://youtu.be/LQCzejDV7cY?si=R-smlPQ-HpPN0zD3 because I did have a weird fascination with that name as a kid.

Kiragushya a 2 1/2 foot tall dancing sword waving samurai

I never had one as a kid either, not sure if I could have with being on the aphantasia spectrum. I do, however, have a lot of characters I’ve roleplayed with, and they all go by what one might say is a set system I use.