Small plant pot, herb holder

Simple 87mm circular holder for supermarket herb pots, with small hole for nailing/screwing to fence. Also works with the square pots.

I picked the colours at random, but planned on saying the colours would identify the herb.Wife said she wouldn't have liked them in the same hideous colour, but as they are all in a different hideous colour, it makes her happy. I'm calling this a win.

2 Perimeter with 20% infill is plenty strong