I put plastic tubing up around the hole number indicator on top of some of the baskets yesterday. (Both practice and holes #1-5)
This was experimental and I would like an opinion or three before continuing or doing this at other courses. Application was more clean on some than others as I found it works better if tubing very neatly split.
//was mildly pissed about a couple disc gashes, decided to do something to mitigate damage