sealing them with stickers is a GREAT IDEA!! I used scotch tape on mine last year, and although it served the purpose, I just wasn't really excited about it.
Since I wasn't sure if the guys would be able to "hide" the eggs in a traditional sense, rather than having a special "prize egg" to hide, I just put a slip of paper inside one of the eggs that said prize egg. Whoever wound up with that one, whether by "finding" it, or just picking it randomly out of the basket or whatever got a gift bag that had a movie, and some candy and fun stuff in it.
Too bad panty hose don't still come in those eggs--those made EXCELLENT prize eggs! (oops, just dated myself didn't I?)
"Years ago my mother used to say to me... 'In this world, Elwood, you must be Oh-so-smart, or Oh-so-pleasant.' Well, for years I was smart- I recommend pleasant. You may quote me." James Stewart (from the movie Harvey)