Hey Justin,
I looked high and low for a place to get some corian until I went to a counter top fabricator, at first he said he would sell me some, (I don't like paying for stuff) and I told him if I made him a really nice pen from some of his scraps could I get some more.
He agreed, so what I did was make a corian pen that took me about 2 minutes and 38 seconds as a goof, when he saw it he had a really good laugh, then I gave him the one that I made for real. Needless to say, I can go back there (and I do) any time and he has some waiting for me. He even glues up some 1/2" pieces for me because that is the thickest you can get.
So stick with it and you just might get lucky. Here are the two pens, and also a Cedar birdhouse that I put a corian roof on. If you look close you can see that I also tuned a little perch out of corian.
Good luck.
Tom/oops99