Topps Tribute is too rich for my blood but cheap singles abound on eBay. I was able to secure a dual relic of Matt Kemp recently for less than half a blaster, and it's a gold parallel /15 to boot.
Numbered 12/15, it's the newest addition to my Bison PC and is a most aesthetically-pleasing card. The right swatch has a thread completely out and loose, which is pretty cool. Also, how can you not like a subset called "Famous Four-Baggers?"
It sounds both historical and dirty.