Try cloth camo tape. Any decent archery shop should have it. Understand that once its on, its on, and there will be razorblades and alchohol to remove it, but I've used it on my bows for years to suppress flash and rattle. The more it gets wet and drys, the firmer it gets stuck. Important note. Putting it on is ideally a two person job, as you want it stretched TIGHT before applying. The stuff is great, its like a sticky ace bandage.
FQ13