Edwin Budding's Lawnmower

Origin
Edwin Budding saw how well a bladed cylinder sheared fuzz from cloth, so he tinkered with a garden variety. Instead of teams of scythed groundskeepers to attack pavilion-sized estates, the ordinary homeowner could work their own home and a bit of a sweat.

Effects
Cutting any pattern into the grass and then unloading will replicate that shape until it meets verdant boundaries. Causes mild sweating and exhaustion similar to a day’s worth of grass-swiping.