If I were to make a robotic lawnmower (as opposed to merely aspiring to own one) I would name it the Electric Sheep. That's part Philip K Dick reference and part very accurate description of its function on my property: graze autonomously to keep the lawn in check. It would not have to look like a sheep, but I may include some sheep sounds for kicks.
Mokalus of Borg
PS - It might be a bit strained to come up with an appropriate S.H.E.E.P. acronym.
PPS - Special ... Hedging? ... [something] Electronic Prototype. See?