Dented deer deterrent

The primary hitting spot provides a striking point which produces the first noise signature and helps the golf ball build up a bit of momentum before swinging towards the secondary clanger.

I've discovered through some trial and error that a slight half moon shape of a curve is the way to go for trapping the golf ball in the same spot each time which is important for the secondary clanging accuracy.

It's also important to allow for enough height in the primary piece of tin so the golf ball will have enough surface area to ride for a few seconds.