I designed a poster and some stickers for the showcase.
For this poster I wanted this retro colors, farmer's market, kitsch feeling to the poster. I made sure to use elements from the book without showing it all in the poster, so that it acts like a teaser for the book. I also added a fabric overlay to the poster to maintain the table cloth vibe.
As for the stickers, I picked out a few of my favorites, and asked some users as well, and made a small sticker pack.
I printed one poster and around 30 packs of stickers (each one has all 6 stickers).