Three Dimensional Wrapping Paper

For some reason I had always had in my mind the idea that wrapping paper needs to be flat.  But of course it doesn't.  I recently wrapped up a gift in white paper and let the girls glue on all kinds of things:

pom poms,
confetti
ribbons
and googly eyes!

Have you ever let your kids go three-dimensional with their gift decorating?  What things have you glued on?