Sapling or Hose collar
thingiverse
This is a simple collar I designed to protect drip irrigation hoses (and saplings) from the evil string trimmer. Since it was designed specifically for drip irrigation hose, there is a "tunnel" on one side to allow for underground hose installation. The slot on the back side easily stretches to allow for 1/2" diameter shepherd's hook posts. Instructions Print in a color that won't detract from your landscape. I chose black to match my shepherd's hooks holding my hanging baskets. It's a simple design, but I've included the OpenScad file if you need to alter it slightly.
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