I've used the 505 spray on smaller projects,and truly loved it!! Be sure to read the directions on the can. It is VERY flammable. I think using it outside is the best idea also and the plywood "table" is awesome. I'm not sure about other sprays.. I've heard stories about others gumming up a sewing machine, but not seen it first hand. I keep old rolls of Christmas wrapping paper to put on the table and use to catch overspray on smaller projects. You can buy it in quilting shops and
http://www.sewforless.com/item/505_T..._Can/7391/c109 here's a good on line site