… for foam brushes when varnishing my kayak. I had some open cell foam in a closet which I cut to manageable peices for tipping off after rolling on the varnish. I recall that the foam cost about $14 for a chunk 72"x 36" x1"when I bought it for a cushion. It seemed to behave just as well as the foam brushes which cost about 90 cents for a 3" brush. I do have to use a brush, though when varnishing around the coaming.
whoops Ithinkk I may have the image posting right now
I ordered foam brushes from Jen Manufacturing by the box. One box is shipped in its own box, but when i ordered 2 boxes, they came in a big box with foam scraps as packing material. Same foam as the brushes, so I did as you have.