If props aren't really your thing, you can choose from a myriad of other ideas to get creative with your speech. No one wants to hear the same old boring speech that they've likely heard a million times.
Why not entertain the audience? Strike a sentimental chord and make them laugh by performing a silly dance or handshake that you and the bride made up when you were kids, or sing a song that brings back memories of the bride's high school days. You can even create a slideshow to accompany your speech. Everyone will love your spunk and flavor!
Be careful, though -- if you're thinking of doing something a little outlandish, check with the bride first to make sure you're in the clear.