Here's a few cards I purchased from a single seller on Ebay. They came along with the James Neal Dominion Autographed Patch card and the Pekka Rinne Prime Signatures card, but I pulled all of these aside and grouped them together, because they cost me just a dollar each. So feast your eyes on what a dollar (plus shipping) will get you nowadays.
2012-13 Dominion Mason Raymond Autographed Patch 45/60
2010-11 Dominion Matt Taormina Autographed Rookie 128/199
2010-11 Dominion Philip Larsen Autographed Rookie 96/199
2009-10 Ultimate Jamie Benn Ultimate Debut Threads Jersey 4/200
2012-13 Panini Prime Jason Zucker Prime Time Rookie Jumbo Jersey 4/99
2012-13 Panini Innovation Ban Hansbrough Autograph
2012-13 Panini Brilliance Marks of Brilliance Dennis Scott Auto
(Okay, this one was actually $3.24, but since I really only got it in hopes that it would surpass the four-month waiting period, so I could get it replaced with a Penguins card, I didn't think it warranted an extra post.)
As you can see, you won't really get any megastars (although a rookie jersey of Jamie Benn ain't bad), but you can still get some really cool cards for what amounts to pocket change.