I'm not positive, but I think this is the set- http://tradingcarddb.com/Subsets.cfm/sid/18919/2005-Donruss-Throwback-Threads---Polo-Grounds-45-STRIKE-Short-2
Saw some similar cards on ebay. I have never seen them before otherwise, but I don't think I collected cards in 2005 (I sold my collection in 2004 so I went a few years before getting back in).
Royal Card Review is my blog if you feel like checking it out, thanks if you do!- royalcardreview.blogspot.com/
In the process of updating my collection so don't trust any of my lists right now.