I’ve been inspired by Peter Schumann of Bread & Puppet Theater to write and publish my own small books. You should do this too! Books are easy to stick in your pocket and they never crash. I have a small assortment of booklets for sale:

John the Red Nose: I illustrated a version of the ancient English wrenning song, the Cutty Wren as sung by John Roberts and Tony Barrand. (40 pages, 1987) $ 5 + $ 1 postage
Magalena Hagalena: This song is so gross it needed pictures to go along with it.From the singing of Steve Hickman, John Devine, and Claudio Buchwald. Probably done by the time this goes onto the webpage. $ 5 + $ 1 postage