Here comes a whole bunch of Star Tracker transformation pics. His crossdressing cosplay sees him trying to find all sorts of little odds and ends he can use in his outfits, and more than a few times he’s gotten his hooves on a cursed item that transforms him :D
 
A blue gemstone made of concentrated skunk spray that crystallized like amber over thousands of years. It doesn’t smell, but it does transform :P
 
And the rest:  
Regular form  
Harpy form  
Inflatable form  
Skunk form  
Lamia form  
Portrageist form  
Siren form  
Goo pony form  
Twilight Sparkle form  
Zebra form  
BONUS: LIVING DRESS  
BONUS: SHADOWBOLT