I just finished my first scratch build (Mighty Mini Corsair) when I happened to come across Avery sticker project paper.
The material is advertised as being repositionable / removable, which made me think it might work well for transferring templates to foam board. I hoped that it would come off clean without leaving a residue, and that the sticker might go back on to the backing paper so I could use it again later.
I needed to make a new cowling for my corsair. After printing on the sticker paper I cut out the cowling with about 1/8" margin and applied it to the foam board.
The sticker stayed put during cutting and came off easily when I was done. The cowling is an easy part to cut so the sticker was only on the foam board for a few minutes.
It was a little tricky to return the sticker to the backing paper and I'm not sure it will stay on, so I may have to print another sticker the next time I need a cowling.
Overall the sticker paper worked well and was a lot easier than using tape and plain paper. It's also probably more accurate, since I don't think the stickers will shift during cutting.
I paid $6.89 for a pack of 15 sheets on Amazon (it's Prime eligible).
11/5/16 Update: The cowling is a very simple part. I'm building a Mighty Mini Arrow now and I just used the sticker paper to build a wing spar.
The wing spars are long pieces that span two pages. I trimmed the overlap from one piece only, and put the piece I did NOT trim on the foam board first.
Lining up the second piece was easy and the stickers did not shift during cutting.
To keep the sticker intact (in case I ever need to build this piece again) I only cut small sections of the fold lines, and finished the cuts after I removed the sticker. The sticker came off clean, and I put it on a piece of wax paper when I was done. Don't forget to pencil on the part name and fold type.