Peg for Robotic Lawn Mower Wire

Created a .stl with 20 of the pegs from viesturs (https://www.thingiverse.com/thing:1028268).
These are really great pegs for soft ground. You can't get them out easily.

I printed them in PLA and 100% infill and they don't break when I put it in the ground. But if you try to remove them, they will break with PLA. So ABS will be a better option.