Perfect for Fathers Day if it slipped your mind somehow... If your father uses it to beat you on the golf course... I am sorry. =)
I like to have parallel lines on a golf ball. It is nice for lining up putts and drives and you can also diagnose they way you struck a putt if you watch the lines as the ball rolls.
I created this simple tool to add the lines with a sharpie. Pick whichever you wish depending the the sharpie you have.
I have also included the link below. Tinkercad was a really slick place to create this tool. I printed it at low quality and am very happy with the results.
If you have not messed much with TinkerCAD, I have created some tutorials for my students that you can explore. You can find them @HLModTech on YouTube or use this bit.ly/modtechYT to get there as well. If you like what you see, please subscribe.
This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/0BPuz6prDV0
This is the link to the version for a normal size sharpie. https://www.tinkercad.com/things/jW7kbEzMNUb-normal-sharpie-2-line-golf-ball-marker/edit
Slick print as it works in about 15 min on a rep2. The tabs work as rafts and make it easier to hold the ball in place.