Moo!
Thanks to the heads up from Lifehacker, I now have 10 Moo Flickr minicards winging their way to me and I’m excited!
Given away free to Flickr Pro Users, Moo minicards are basically calling card representatives of Flickr photos that can be personalised and used for all manner of things (businesscards being the most obvious).
So far the flickr feedback on the Moo user group has been ecstatic with happy customers taking photos of their sets 
when they arrive. Ideas floating around for ways to use the cards also includes leaving them on the tube or train to generate traffic to the photographer’s flickr userpage.
Being the more…amateur photographer that I am, I love the idea of having a wallet sized version of some of my favourite pictures to hand. Each card is made from heavy stock paper with ‘a smooth satin finish’ and is roughly half the size of a normal business card (28mm x 70mm). Working in conjunction with Flickr, the app is incredibly easy to use; choose a picture, select the area to ‘moo’, and either look at a preview or hit send.
The backs can also be customised to include name, address, phone number, blog address etc, but for the free sample only, the Flickr logo is mandatory (with or without buddy icon).
bit10: Fancy letting your employees upload their favourite self portraits to be used on the next round of business cards?
Everyone else: They’re only giving away 10,000 free sets - so snap yours up here.