I have had some succes with using plain old super glue. You can also use Mod Poge gloss medium. It takes some time to dry but you put it on something that it will not stick too,,I use old CDs or wax paper,,then using a toothpick,,,apply it where you want it after its starts to harden a bit.
Large pieces you can use scotch tape and apply the medium over it,, smaller pieces over fishing line like Spruce said..
I'm actually doing this on a figure for the Korean War group build and hope top have pics by Sunday.
Good luck!