Let's change some dollars the old fashioned way!

Recently I did some street art in the centre of my home town. Basically it were 22 birds I painted on the boards that were covering the windows of a building that was neglected for a few decades. At some point the building housed a pet shop called 'Bob's Bird Barn". Hence the birds.
To cover the costs of the materials I came up with the plan to sell postcard books with all 22 birds in it.

I don't want votes. I just want money.