(Found by Katy E. here. And btw, from those bins in the background I thought this was taken in a store. It wasn't - that's the guy's HOUSE. Leaping Lego-Loving Lizards, Batman!)
Number of Lego bricks individually cut and trimmed? 125Number of Lego "studs", placed one by one? 442
Hours to create? "at least" 8
Site of the crazily devoted Mom responsible? Jumpin' Monkies
And get this: she's not a professional baker, y'all. Wowza. (Thanks to Such Cool Stuff for the link!)
Here's the Goliath version by Chocmocakes:

I've seen a couple of mid-construction Lego wedding cakes, but I really like this one:
(Found here by Amy L., and guess what? It's another Charm City Cakes creation!)But if you wanted something more subtle, here's a cool minimalist version:
(Source, but no baker credit. A little help?)And another more-subtle version that Miriam L. saw at a wedding just last week:
Love it! (More pics of the Lego-themed wedding here.)And lastly, for you cupcake types, some gorgeous examples by the oh-so-talented Hello Naomi:

*Similar Sweets: Lego Batman: The Video Game
