The Colbert Vancouver poster can be downloaded here (pdf), and the Henry Rollins poster goes on sale at a random time here.
And a few more links:
1. Make More Money stamp by Kenn Munk.
2. Apparently, rubbing a walnut on scratched wood magically covers up dings.
3. 2009 Nebula Awards finalists. Via.
*Previously: Emoticon stamp.
*Buy concert posters at eBay.