I think on our campus ZTA uses stringing; the girl who lived across the hall from me in the dorm last year came home with her big wad of yarn that had candy tied into it here and there, and of course all her gifts. She seemed to like it pretty well but I guess some of hers even went through keyholes and stuff... tricky but fun
We (Chi O) have a clue hunt with gifts around the house... which I think is a BLAST!!
Not sure what KD does for big sis revealing... maybe I'll ask 'em some time