Leatherworking tools and equipment
There's a bunch of these kinds of things on ebay. I don't have a specific one in mind, just something that has a bunch of different tools to play around with.
Arkham Horror: Countless Terrors Playmat
This playmat looks amazing, but it looks like it's out of stock most places.
Arkham Horror: Across Space and Time Playmat
Another playmat, also looks wonderful. I only want one of them, but I'm not sure which will be best. They're different sizes so see which one you think would be best for us to use, and also which one you can actually find.
Art prints!
Nothing specific in mind here, just any cool bits of art that you can find ^_^
The Investigators of Arkham Horror
This has a bunch of short stories about characters from the various games which is kinda neat. There's also a premium edition which looks cool, but its expensive and I don't know where to find it.
The Unbeatable Squirrel Girl Beats Up the Marvel Universe
By Ryan North of Dinosaur Comics
Mansions of Madness: Beyond the Threshold Expansion
Mythos Tales Board Game