Cement, cement, glue, nail polish etc... I hate when the fly comes apart...
I've just retired a size 14 pheasant tail beadhead nymph. I used it on weekend outings for two and a half months... Yup the same one.
Must've caught 60 to 80 fish on that one... Finally two weeks ago a 16 inch bow got a really good hold on it with it's teeth. Can't really complain about that one.
Anyway with cold moths coming I will be returning to the vise. You might want to invest some money in a certain brach of adhesive indusrty...