Experiment in progress...lab coats and goggles, please.

I've been doing some experiments involving coffee and unbleached muslin. It's all very hush, hush, but I'll tell you what I can. I'm working on a process for dying fabrics with reduced coffee, but it's been difficult, what with the bleeding problems and all. I think I've got it beat, and I will post pictures of the finished bag when I'm done!