>>8534625Mirage employee/Mutantanimals creator Ryan Brown posted a smattering of toy concept art at lavignebrownart, but stopped a decade ago. A book called Rad Plastic is coming out that's going to have a bunch of concept art and prototypes, but preorders ended on it.
It is a little frustrating considering MOTU and other toylines are better documented. And the history is pretty neat. Mirage basically handled all the toy concepts. Peter Laird submitted his own ideas, pic related.