LO is going to be Pete the Cat & His Four Groovy Buttons for dress like a book character day this week. I got her a boys yellow button down dress shirt and sewed on 3 of the 4 buttons. I'd like to make the fourth one "spring" from the shirt. The buttons are plastic. I was thinking of coiling up a pipe cleaner to make the "spring", but how to attach the pipe cleaner "spring" to the plastic button and shirt?

Help!

(She will also wear royal blue leggings and her red converse. I'll make a headband of the face/ears. I just realized tonight that she probably needs a tail too!)