I think I have a cure for that... when you wet the paper and take the decal off to apply it, dip it in a little glass of Future before you stick it on... the Future glues it on the body basically with no silvering or anything... because it's already Futured when it dries you can dull coat or what have you right over it without it wrinkling...
I do this as a standard for instrument panel decals when there is no detail on the IP, and am about to try it for larger decals like national insignia etc..
Works like a charm! And it's something available at the grocery store and doesnt cost much either!
---edit---
I just reread and saw the "tiny" part... you could put a drop of Future on the spot it goes and lay the decal into it... position it and tamp it down with a Qtip moistened in Future...