Ok, first up, Lynellen nominated this bit of awesomeness made by Charm City Cakes, aka the Ace of Cakes:

Kassandra B. found the next two. First a super shiny specimen from Rachel's Custom Cakes:

And then this hilarious example from Cake Corner:

Those are all fabulous, of course, but Kendra's find is the hands-down winner. Get ready, geeky guys and gals, 'cuz here comes a Stargate wedding cake. Awwww yeeeeeah!

Check out the great details on the topper:

You can see a few more shots here, where the groom writes that the wormhole connection is actually hand-painted icing. I could have sworn that was an edible printed image, so color me impressed. Plus, the entire cake was made by his in-laws - how cool is that?!?