Ok I have several used quilt stencils and was told by a local LAQ that using spray adhesive on the back of the stencil helps it stay in place when using the pounce pad, and it works great, but I have finished several different projects doing just that and would like to get the residue off of the stencils for storage. I have tried rubbing alcohol, laquer thinner, and soap and water, but rubbing the stencils can cause damage (especially if there are points on them) Any suggestions, the spray basting can suggests using organic cleaning methods-what does that mean?