Quote Originally Posted by robbalbrecht View Post
What kind of material would you suggest? Just something black? We have a pretty good fabric store here maybe I'll pay them a visit to see what they have.
At the fabric store, ask if they have "blackout cloth". I have a few yards of that which I purchased primarily for light-blocking, but it's black and matte and probably would work fairly well.

If you want/need total overkill at a matching price, then consider telescope flocking. Here's an example page for Protostar's flocking products, you can find others via web search.