I'm cleaning out the astronomy closet, and I hate to throw anything away that someone can use. I have a piece of really nice black flocked self-stick paper from Edmund Scientific. It's an L shaped scrap about 6" X 14", and 3 1/2" x 6".
I used the rest of this roll on one of those big, cheap Chinese refractors, and it worked great for eliminating reflections and improving contrast.
Anyway, if you can use it, its free + shipping charges. Small packet USPS Express Mail in the continental US is about 4.00, or you can send me a Self Addressed Stamped envelope and take your chances with 1st Class mail.
(Note that the image was taken with a flash, this stuff is a real black hole!)