"The Forms of Itsuki" is a series of chibi drawings specifically to showcase all of the forms Itsuki (one of my Yoshi OCs) has taken over the years. I use these specifically for the thumbnail pictures in the Shapeshifter Log documents.

As vengeance for keeping him trapped as a Charmeleon for months on end, Feather ambushed Itsuki at one point with a Bob-omb fuse that he attached to Itsuki's head and lit with his shapeshifting flame. This resulted in Itsuki exploding and reawakening as a Bob-omb. Now, since Feather was stuck with his own powers being used against him and Itsuki had no hands to use his gloves to change himself back, the two ended up stuck in those forms together until Feather finally learned how to weaken his own powers enough to be turned back into a Yoshi.

You can also view a doc with all of Itsuki's forms here.