I did a homemade version once. Cheap flashlight, threaded bolt, some wire, and a doorbell.  My cheap bow had an insert on the front. Wired the doorbell button into the switch, taped it to the bolt, scewed it into to insert, then taped the button to the back of the grip.

QuoteOriginally posted by Tradtical Commando:
DONE!

Well done!

F-Manny