You have a nice variety of designs. It seems like a great way to build up a passive income over time. Plus, you still have rights to your art. I was thinking about joining Zazzle and CafePress. Due to time constraints, I'll probably wait and start in six months to a year from now. I was reading on the Zazzle forum, once you have 150 unique designs, your sales should increase significantly. Anyway, good luck with it.
As long as you keep a person down, some part of you has to be down there to hold him down, so it means you cannot soar as you otherwise might.
-- Marian Anderson