In school, there was this guy who used stone fleck on one of his architectural models. We've never let him live it down. But now, we're warming up to the sprayed-stone idea after discovering Spray-Stone Limestone Plaster. It's a wall finish made for use in the home and it looks beautiful. Created by E3 Coating, Inc., the finish is actually an environmentally friendly, lime-based plaster that imitates the texture of limestone. Sold by the 50-pound pail, each container covers about 200 sf in two coats. It can be brush, roller, or spray applied and costs $225 per pail.