You can easily make one item that is both a slingshot and a slingbow without an expensive whisker biscuit. Here's one I made with a heat gun, drill and scissors from pvc pipe. Notice the shape where the arrow rests allows the fletching to pass through unimpeded. The handle is 75 ft of cordage overwrapped with electrical tape. This was designed to slide onto the top of my hiking/survival staff(also made from PVC). The 3/16th holes near the top of the forks are for slingshot use. The holes at the curve of the forks are for slingbow use. The pouch flips over and has the paracord on one side for arrow nock, or flip over to leather only side for slingshot ammo(made from an old belt). I also have a heavier duty set of tubes that have a 50lb draw weight if I want to hunt something bigger. But that requires it to be mounted on top of my staff for bracing. Works great. Image attached... slingshotbow.jpg