This is one of my most stupid ideas ever!

A compact gadget which can be used to play mini golf if attached to a bic pen.

It can be a useful mini golf balls transporter.

Now, imagine this at school: you're at school during that boring hour, you take your pen with this assebled, you take out the balls from the big part, you draw a game on a sheet of paper and you start playing.

P.S. attention to the material supports, i personally printed the big blue part in ABS.