A.L.
Beading is always fun... They have kits you can buy or buy the stuff separately. Also, at Michael's, they have those tubes of paint (they are contained enough so that it's not messy) and the kids could make personalized tees.. you can buy the tees at Michael's as well or maybe get them cheaper at Target.. you could buy a package of boys white tees..or oversized men's.. and it could be worn as pajamas..
have fun!