I sew all my plastic baits to hook while watching TV. Use either fishing line, heavy thread or the waxed string used to sew leather. They work great. Never slip.
I really like the loctite 'gel control' from wally-world too. Easy to put exactly the right amount in exactly he right spot. I found it dries clear unlike some of the other super-glues that turn opaque/white so its great for finishing of the heads of flies.