If you are looking for something in particular, or you want a signed print or book, drop a line at mail@betsystreeter.com
Radiator Comics carries all three Sloth and Manatee books, and a whole lot of other great indie stuff too
Get the Brainwaves cartoon collection Books on BookShop.org
Prints, Cards, Mini-Prints and Stickers at INPRNT – They do a beautiful job at very reasonable prices with frequent sales and there’s tons to choose from
License Brainwaves Cartoons – A huge archive with something for everyone, I’ve been with CartoonStock forever and they are great