Not sure if anyone has tried this but thought I would share it. I have been busted in the past with Can Calls, tip the thing and out of nowhere a dang deer pops out and looks upwards instead of at my direction. I then had an extremely ghetto idea that I decided to try.

I took a can call, piece of baseboard trim, swivels and some old fishing line. I took the swivels and tied line through the top of the can and then tied off the bottom. Then I took 40 feet of fishing line and connected it to both sets of swivels. I cut small notches in the baseboard and got 25 feet up and calibrated it so that you can just tilt your wrist a quarter turn down and then back up and bahhhhhh she goes. I then covered the baseboard on camo tape. The rig works great, I have tested it with deer at 20 yards and they look at the base of the tree and not up in it. This might sound ghetto but I carry the crappy looking ghetto call on all my hunts in trees.

If you try this use mono and not braided, sometimes the rig spins and braided line doesn't allow it to tip of there is an abundance of spin due to line on line friction.