Yes I have too, an easy favorite one was to put some glitter inside and swirl it around, it will stick, then use some puff paint to do the year. Another good one is to take a fake pointsettia glower, white works good. If you roll it together tight you can get it inside and it will open up.
Oooo! Yes, to the glitter! Never thought about a Point in there! We did swirls of paint inside them, too. My kids liked that one. We made them for The Grandmas. ;)