A "character" from some roleplays that go on between a few friends and I, created by Jara

His name is Mr. Stoat and he is literally a giant, purple, animatronic stoat

I don't really know how I'd get in-depth about him so I'll leave it at this;

10 year old boy turns into a weird dog-stoat and then has a bigger mechanical stoat burst out of him which is the real him

[Spongebob voice] Imagination