We sell 'em to unsuspecting teenagers as Skunkweed. We net a packet
The implement is called a "Grandpa's Weeder", presumably as its an old design dating back to about 1890ish. Its incredibly efficient on medium to larger weeds as you use a prong to 'spear' the weed and then lever it out. It does't work to well on the smaller stuff, and its best used when the ground is damp, but its good exercise and keeps the deeper rooted stuff away better than Chemicals.