This is my attempt at drawing Greninja, but it's actually an inflatable latex suit. I initially attempted to make it a Kigurumi like aozametakao (Twitter handle) does it, but that turned out harder than I expected. So instead I made it a fully enclosed suit and inflated it. The material is still latex. I hope you like it! :3
Link
Hexiram
I bet it's very comfy to wear.