UFO's are my speciality lol I make em in the winter(the tops) and then end up quilting em in the summer when I can get em out side to spray baste em. I set up a couple of 4 foot by 8 foot plywood sheets I purchased just for this( and a couple of sawhorses) . I tape the backs down on em and go from there. I do not have the room inside to put the backs on em in the winter. I live in a mobile home.