Well we had about two nice days in a row this spring before it started to snow again (ughhhh) anyway we decided to do a fun outdoor project. So this is all you need: coffee filters, washable markers, and some water.
Make a fun pattern, the more colors the better!
Then paint them with good old fashion tap water..... and.....
if you have some sunshine lay them out to dry, if not air drying works too.