The girls and I always decorate clear glass ornaments by squeezing paint in them and swirling it around. This year we put a little twist on that activity by using glow in the dark paint. The girls and I were excited to run to the very dark bathroom to see if the ornaments glowed after we made them...they did! So, there's another simple, fun, and quick activity for you!
Btw, I bought our glow in the dark paint from the craft section at WM.