So I got the tissue paper idea from
@MiniacRC who has used it on many of his designs. I picked up these colors from Hobby Lobby. I think it was $1.50 per package and so far 1 package has lasted me two planes. Just a light spray of 3M 77 and apply. In retrospect it would have been A LOT easier to do before building the plane! You apply similar to colored packing tape - start at one end and smooth as you go. In doing so all of the wrinkles in the tissue come out. Did this also with my A-10. No noticeable weight gain... at least on my cheapo kitchen scale.