Cast Iron Spider
We're not usually arachnid fans, but we're prepared to make an exception for this solid fellow.
Measures 4" across, 3½" deep, and 1" tall - about the size of your average tarantula. Nicely detailed both top and bottom. Hire him (and maybe a few of his relatives) to keep your papers from blowing away, or just to hang out and look nicely creepy.