To get started: http://www.artscow.com/
Here are the items and transfer keys, all you have to pay is shipping costs which depending on the item can be a little high. An 8x8 20 page photo book generally runs about $8 or $9 to ship but that also may depend on where you are.
Create an account and enter the transfer key as a coupon and validate. The item will be placed on your account and applied when you are ready to order. Be sure to order before the expiration date. If there are multiples of one item below and you only use one item, the remaining quantity will still be available for someone else to use. If you enter the key and you get an "invalid coupon code" this means the item has been used.
1- Round Mousepad offer expires 6/27/2012 key # 12n9217okpup
1- Round Keychain offer expires 6/27/2012 key # 7chzmc6ca0fh
1- Rectangle Keychain offer expires 6/27/2012 key # kv7w5r67kwzh
1- 3-Ring Keychain offer expires 6/27/2012 key # s68znsb4atsw
3- Cushion Case (one side) offer expires 6/27/2012 key # fwsuj368tij5
2- Sport Metal Watch offer expires 6/27/2012 key # gmytvao0480t
3- 2.25" Handbag Mirror offer expires 6/27/2012 key # da39gy0ddx32
100- 4x6 Prints offer expires 7/7/2012 key # 6y4ydvhlasj2
50- 5x7 Prints offer expires 7/22/2012 key # 7vo90osvpqqr