Ringmasters won the award for best use of the theme. Here is a photo of the entire booth:
And this is the reason they won:
If you look really close, you can see that there are glass tubes holding up this display, with live goldfish swimming around in there.
Ringmasters is best known for their CTR rings and other LDS jewelry, but they also carry cards, prints, puzzles, decor, ornaments, decorative plates, throws, and other stuff.
(Photos compliments of an anonymous e-mailer.)