You can do the usual balloons with confetti, juggling in front of the kallah, tap dancing, private jokes,wave posters, crazy costumes, fireworks.. etc…but PLEASE dont make the wedding turn into a purim chagigah! Cute shtick is fun too much of it is a little much.I recently was by a wedding and basically the whole wedding was shtick after shtick!! posters with cute sayings, private jokes, crazy wild costumes..I think the friends tried a little too hard.In the beginning it was fun, by the end I dont think the Kallah was enjoying.So as everything else..Moderation is the key.