A simple design for a simple product: Reticulation Sprinkler guard.

Give your lawn a sharp look and protect your Retic's Sprinklers at the same time. 

Designed to be printed in PETG at cheaper then a hardware store alternative, costed at roughly 98c AUD per Guard (Hardware stores in AUS charge $1.45-$2).

Obviously the higher quality PETG will cost you more, but you can also print in whatever colour you want and straight from your printer to your garden!

Obviously recommend PETG for the fact that they will face UV and heat and I wanted them to be durable enough for me to push down on them if walked over.