I've been a long time lurker on this part of the boards but I've always wanted to design and share my ideas for my own toys, but I wasn't sure where to share them. I'm mostly restricted to Autodesk Inventor, not even able to print the figure out sadly. That being said, where would I upload those to share? Is that a "heavy custom," for example?

 

You can upload them to Thingiverse if they’re 3D models, if I’m not mistaken.

 

Not famiiar with them, what's it like?

 

I think that's more along the lines of fan art.

 

Yes, Thingiverse is where you can host your 3d models - preferably uploaded as .stl files.

 

If you wanted to sell the files I’d recommend cults3d