You can use any shape. It doesn't have to be a bunny. Just trace a shape or cookie cutter. This would be cute for any holiday, just use an appropriate cookie cutter to trace and cut out the shape, then whatever yarn works best for that holiday!
Yarn chickens, so cute!
Paper Strip Easter Egg Art for Kids Could do this with any shape. Hearts for Valentines, Shamrocks for St. Trees or ornaments for Christmas. Well, you get the idea.
Couronne wreath form from a paper plate, could cut a piece of card board from a box like this to use as a form.
we used to have these pompom makers, but we lost them. but you can just do it with your fingers.
DIY Pom Pom Bunnies: The Cuttest ever.Easy to make pom pom bunnies for the kids to hide with the eggs for next year's egg hunt