You can get a code for 50 free Snapfish prints for 0 My Coke Rewards points if you hurry. The last time they had this was a few weeks ago and it didn't take long for the reward to disappear. Read the small print, though, before your redeem: you can only redeem for this offer once per year. There is also language referring to Snapfish reserving the right to deactivate the code if fraud is suspected. So only grab it if you missed out last time!
Go to www.mycokerewards.com and log in. I searched for "Snapfish" in the rewards search bar and it came up.