My favorite part, however, is "The Magical Shop of Fiddeus Crackpot":
When adventurers stop at Crackpot’s Shop, they are often in need of specific things. A wizard browses for a scroll of Detect Invisibility, a rogue looks for a pair of Slippers of Spiderclimbing, but never in Crackpot’s shop do they find quite what they are looking for.
What follows is a description of four non-standard magical items that might, or might not, work like your players expect them too. Much fun!