This is what your tabs will look like. For this tutorial I'm doubling up on the pop tabs, but it is ok to just use two. I have a picture of another pair I made just using two tabs at the bottom of this post.
Place your pop tab on your cardboard or other hard surface. I had a little scrap of wood that I used. Place tac at the top of the tab and pound with your hammer until you feel the tac go through the tab. Do the same thing on the other end of the tab. Sand the backs where you just made your holes if necessary. If you are using two tabs for each earring you will want to put them both together and hammer the tac into both of them at the same time so that your holes match up.
Grab a jump ring, open it up with some pliers or nail clippers wide enough to place through the hold at the bottom of your tab(s) and then pinch it shut to close the gap.
Attach another jump ring onto the jump ring you just attached to the pop tab, this time placing a small bead onto the jump ring and putting in on to face the opposite direction of the other jump ring. Pinch it together.
You now have a cool, trendy, new set of earrings to show off to the world!
This is another set I made using a total of two pop tabs instead of four. A positve thing about doing double tabs is that they can be reversible so you get "two pairs" of earring in a sense. They are a little more time consuming though. I think I got the single tab earring set done in about a half hour. The double tab ones take about 15 minutes longer. This was my first time doing these too so I'm sure the more you do the faster you get.
You can find this awesome post linked up to the following Fantastic Parties: