Ignoring licenced stuff, removal of old characters and maybe bad set ideas, what do you think other TS characters would look like in lego? Can you even make/draw them?
I could give drawing them a go for you.
Lego Slinky!!!
Or Chuckles?
I’m not sure how Slinky could have his spring in lego, though. But Chuckles, ken and barbie would just be you’re regular mini figures.[/i]
I’ll draw Lego versions of characters that aren’t already in Lego form and would be plausable in Lego form. Please request who you want me to draw and I’ll get straight on it.
The Potato Heads! 
Ok then. How bout chuckles?
You know, originally I thought it would be hard to have Mr. Potato Head in lego at all, but a moment ago I thought he could be like lotso or chunk minifigures. Though, he may have like, his arms, legs and hat as the only removable parts, but maybe it could still have his parts removable. I mean, have you seen any other lego figure with chunks face change feature?
Also, there are lego characters in sunnyside in the background, which might be pretty easy to make.
Also Also,I could make Ken’s head out of lego, seeing as I’d only need a regular pale lego face and brown hair.
Potatohead wouldn’t have removable features - they’d have to be tiny, and they’d increase the piece count of the overall set, so it wouldn’t be particularly profitable for Lego to do that.
Decals are an easy way to get accurate torso/heads, it’s only the oddly-shaped characters who would be difficult. They’d probably all use specially-made parts, or be like Lotso and look all Duplo-esque.