This challenge is open and ongoing for golf-related ideas. Eventually, I will try to find a golf club manufacturer or golf commerce player to sponsor the challenge. For now, just have fun and post some interesting ideas!
This is a small, electricity-free putting ramp perfect for the office. In rooms with short carpet, no felt is needed, and it is a subtle, silent, and speedy device to practice putting in the office. Felt can be used for hard floor
When you are golfing or batting, you can set up your phone or iPad to record you. Instead of playing in realtime, you can specify a delay (e.g., 20 seconds) so that you can watch your swing and then go back to hitting.
A pad you drop on the floor and hit with your 7 iron. It needs to resist like dirt, meaning if you hit too deep it grabs your club (unlike turf). Ideally, it has a target line, and could show where your club face hit/left the surface.