I managed to find a four-inch, pastic Weave-It hand loom with original needles yesterday. The instructions are still included within the packaging, but I'm still somewhat unsure of how to actually use the thing. So, I went searching for some information, and I found two helpful websites. I thought I'd share...

Weave-It and Other Pin Looms: An eBay guide, describing the history and overall use of pin looms, such as the Weave-It.

Buxton Brook Looms: History, instructions, patterns, projects, and things to purchase.

Apparently, you use yarn, and a basic weaving technique to create a small patch of fabric. They remind me of potholder looms. I remember those; I should dig my old one out. So, I suppose I'll try the loom out, and see how it turns out.