How do you do it with the Elmer's glue?
THere are many many posts about glue basting on the board. First be sure it is School Glue that washes out. There are different ways to do it. I use to stream the glue on the batting and then smooth out my quilt top or backing. Now I dilute the glue with water and spray on the batting. Much easier and no hard places if some of the glue doesn't get smoothed out. If any gets on my table or floor it wipes right up with water. Glue basting has been around for decades. Many who make show quilts will glue the quilt together before sewing to get perfect blocks, perfect bindings, perfect miters, perfect applique, perfect everything.