Rather than the short stubby handle, here's one you can print for use with a long broom handle. The hole is 23.2mm, so its for a (you guessed it) 23mm diameter broom handle with a .2mm clearence.
There's also a hole in the back of it where you can fit a screw through to lock it into position if it isn't a tight gap.
The main reason for it is so you have leverage and also so you don't have to bend down if the weeds are on the floor and you're not good with your back etc. Use your foot to push it into the weed, pull like its a lever from a ye olde steam train, and hopefully you can say bye bye to the weed.
The author remixed this model.