I don't remember for sure which forum I read about this stuff in. I looked in the "all recent" posts for this forum, and didn't see it, so I guess it was not this one, though the subject certainly fits in this forum, so I will post my comments here.
The post said that Home Depot was selling a transparent, paintable plastic film with low tack adhesive. it could be used just like frisket paper/film, but was a lot less expensive (a buck for a 9 x 12 sheet). I went to Home Depot yesterday and picked up four sheets to give it a try. The box was almost empty- it is going fast. It also looked, from where the box was displayed, that this may be a trial sale of the item. So if you want to try some cheap "frisket" material you'd better go to the paint department of your local HD pretty quickly!
Frisket paper is a masking aid used by artists, especially by airbrush artists. Since it is transparent you can put it down over a design and cut out the area you want to paint. On real frisket paper there is a backing you then pull away, and apply the film to the surface you want to paint and it masks the non-paint areas (like masking tape). The HD stuff looks like a non-transparent backing, but if it is sufficiently low tack, one could apply it to the printed design and then just pull it off. I have not tried it yet, but because there was so little left in my local store I wanted to alert modeling folks to it ASAP. At 98 cents a sheet it is worth taking a chance!