sheesh i don't know but you could buy the parents tickets to the movies so they could find something ELSE to do in their spare time!
have you looked at the stuffed animals? they sound like they are little enough that knitted teddybears and dinosaurs might be cute for some of them! you can find lots of fun patterns though in hats and scarves, i wish my nephews were still young enough i could put them in jester hats!!