I did one of these before with Xeno's first incarnation, and now I'm doing one for her second version. Her name used to be Nightmare, but then I changed it to Xeno in 2013. She used to be a Maine Coon cat, but she changed to a Smilodon around the same time as her name change. I wanted to be a cringy emo, but since I couldn't do it I expressed it through Nightmare.
Blank meme: http://fav.me/d8fj1tb
One I did before: https://www.weasyl.com/submission/1232358/old-meets-new-meme