Preschool crafts can be so fun and messy to, at our church they did model clay thinking it would not be too messy but after the colors were all over them that said it all! Here are a few of many links that have great preschool crafts, http://www.everythingpreschool.com/art/crafts.htm, this last link even has them by holiday or season! The next site is paper crafts
. http://www.makingfriends.com/precrafts.htm, hope between the two you get plenty of ideas! Last dont forget about nickjr.com, they have free printables and more. Dont forget about the easy ones, decorting cookies or a cake around a holiday or just for fun!
