I was at Family Christian the other day, and saw that Willow Tree now makes a cake topper. It's relatively inexpensive, and would be a nice alternative to the norm without having to spend an arm and leg for something like a Lenox topper. One of the links is below (or you can get it at Family Christian; it was around 22 bucks):
http://www.amazon.com/Promise-Cake-Topper-Willow-Tree/dp/B00133W5SSThought I might let y'all know, since these are pretty popular as collectibles, adorable as anything, and don't cost a crapload. Plus, you can put it on display after using it on the cake! In terms of sizing, it's a little bigger than it's regular "angels', but a little smaller than the full size version of this. It's pretty lightweight, too (you wouldn't need support for it inside the cake). Hope this helps someone out who is looking for a topper!
Here's a pic, just for kicks:
And another, in use on the cake (actually a really cute cake idea!):
