I'm a big fan of Flight of the Concords so I made this one; http://teespring.com/itsbusinesstime

Wonder what tips there are around getting a campaign right (ie guessing simplicity and fun are key factors...but what about colour of the t-shirt etc?) Also, would be nice to get some analytics about how many visit your campaign page Vs people who add to cart but don't buy etc.. (or did I miss that?)

[also this is my first post on Hacker news! followed for ages, but kind of looking forward to adding more]