If you plan this project out, it is relatively quick to make. The drying time however is where you need to be patient.
I've made a variety, and hundred's at a time.
Be creative, come up with a theme, or use your friends faces, use old magazines or even all your paper scraps. It it totally up to your own imagination!
Almost everything can be bought at your local dollar store.
For simplicity, find a large circle hole punch. Gather your colour scheme, theme or just any patterned paper you have laying around. Start punching your circles. I like to do this while watching tv.
Turn all your clear glass beads flat side up and put one drop of white glue on the back and place your paper, image side down and press. Let dry over night or until you can see the image clearly through the bead.
Apply another drop of glue (I use Weldbond, it dries clear and is strong). The magnets I've been able to source (Dollarama) have a clear indication of which side is NOT magnetic (see previous picture). So make sure you glue the correct side down (or your magnets won't stick!) Again, let dry for a few hours.
Turn them over and you've got your magnets!