Years ago, we used to use an arrow holder called a silent partner. You had this long skinny triangle shaped piece of plastic that was about 1/4" thick, with a small hole in the small end. The big end sticky taped to the opposite side of the riser. You fastened a rubber band through the hole. It went around the arrow, then back over the end of the triangle. When you draw back, the rubber band rolls off the end and flips out of the way. Works just like the toothpic thing, but you don't lose the toothpic. We made several from plexiglas, but it's a bit too brittle for cold weather. One good bump could break it. The factory ones were a bit more rubbery.