I have a large(Magnolia) tree stump about 3 ft in diameter) I need to remove. I know I can rent a stump grinker from Home Depot and can chop it up with a chain saw. Are there any products I can buy to do the job? I'm thinking about cutting out a hole in the center and planting something to slowly eat the wood(can't use explosives, because it's in front of the house, 3 feet away from the street and sidewalk). Any suggestions?