Transformation Triggers (Patreon)

Is there a type of female muscle or superheroine transformation you've always wanted to see, but which never gets made?

This is a little like the competition, but I'm keeping it pretty loose.  If you have an idea for a transformation, post it in the comments.  Nothing weird, and no sex/orgasm transformations for now.

It could be an origin transformation that's permanent, or the more usual Hulk-style repeatable transformation.

Best/most popular ideas could become mini-comics.  Only share ideas you don't mind being used of course.

(No ideas featuring - anyone under 18 as a participant or bystander, significant blood/gore, sex-based transformations, anything that sounds legally dubious not already mentioned.  Thanks).