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!
Last time I had my hair cut cut it was like this. but don't want to part with my long hair! -Back view of long bob haircut - blunt cut with subtle layering added at the edges to allow edges to sit nicely.