One of the most obscure (and rare) items floating around are a number of Garbage Pail Kids PRICE GUIDES put together back in the 80s! Given the complete randomness of these items, combined with the difficulty in tracking down much information about them, this page will serve as a visual guide of what is out there to collect.
By far the most prolific set of GPK Price Guides produced was by MIKAEL'S. Below are images of every variation that has been located.
Although not as many volumes were produced, most collectors view GRANDMA'S GARBAGE PAIL KIDS PATCH GUIDES as the most popular. Below are images of every variation that has been located.
Aside from the two described above there was not another series of guides produced with similar consistency or quantity. Below are images of every possible price guide that has been located over the years. If you see one that is missing, please hit me up!