For those of you who are diorama enthusiasts, make sure you check out this amazing Wiki, called Mini treasures. It's really fantastic. A lot of the articles are written for smaller scale--true miniatures, but I was able to come across this page on 1/6 scale (playscale) items.
Why don't you join and add your expertise? Do you sell playscale miniatures? Even better! Add your 2 cents, and then add a link to your store!