Disc golf range finder that is a mini. I saw a range finder in the market and realized how simple the model was and so I recreated it from of that product, but I put it on a mini.

I will look to add an instructional image on how to use it. The basics are to hold it out straight in front of you and align the top of the basket and the bottom of the basket carriage (where the disc lands, not the pole) and that should give you a rough estimate of how far away it is. 

EDIT: Added Metric

*The bottom is supposed to be a logo. I was just playing around with the idea and got caught up in the creativity. **The 'theoretical' name was called 'Provisional', meaning that you pull it out as your provisional to make sure you throw a good shot.