Did a trade about a week ago with ChazGELF. I wanted artist-made printed or unique stickers for my new sketchbook, so I asked my tumblr followers. Chaz made a neat design of Chaz and Moth Monarch playing Civ in return.
I'm not open for any more sticker trades at the moment since I have enough now for the current book, but I anticipate repeating this for future blank-cover sketchbooks.
Sticker size about 2x2.5" if I remember right.