I don't need a bonus to do chores :D Me and my wife always split the chores, but not in equal ratio... she make the bigger part. Btw, I like to make chores (indoor and outdoor also), with some exceptions, like washing dishes (we don't have a dishwasher) and to iron, but I make clean in the house, wash the windows...and I really like to bake / cook.
But your idea is good, IDK just how will be "measured" if the task is completed, and you deserve the sat reward, or not ;)