I self-published 2nd collection of my comics. I will donate 0.25$ (Canadian funds) to a charity of my choice for every copy sold. When one buys a print copy, a free digital copy is included, thus will only count as 1 copy sold. When one solely buys a digital copy, I will count that as 1 copy sold.
Available here:
https://www.magcloud.com/browse/issue/1837915?__r=170277