I needed something to pull out the tiny weeds growing in my fall garded. my dog flea remover tool gave me this idea.
The groved close teeth will catch the weed stem and and pull it out. the blade on the back can root out deep weeds,
It can be mounted on a handle of your choice,(pvc pipe, old broom handle.,etc)
My soil is sandy and it works well. I dont know how it would work in hard clay.
You will need a strong filament such as ABS, or PLA+. and arrange on platen as shown.No supports needed and use whatever infill or resulation you like.

Creality

Ender 3

Doesn't Matter

Doesn't Matter

28

20

I used various files found on other projects plus my own on tinkercad