I use 5 min epoxy.

Homemade bodies or preformed, balsa or foam. Use folder sandpaper (120 grit) in the slit to make the hook fit just tight enough so the body doesn't fall off. Mix up a small dab of epoxy, and with a tooth pick, dab a little epoxy in the slit. Then add a thin layer of epoxy on the hook shank and fit together. Use a clean tooth pick to wipe off excess and smooth out. Set aside to cure, and do another.

If the hook fits very tight when dry it will squeeze off most of the epoxy when you glue them together.

The trick to getting more than a couple done before the epoxy sets is to have everything laid out ready, including a drying area where they can lay upside down to cure. I use the rough floral foam and make slots with the hook before I start, so as soon as I add epoxy, I set in the foam. Can usually do 4 or 5 before the epoxy gets to stiff to work with.