This one is pretty cool, it’s a sweepstakes and a free sample. You do have to do a little work though.

Get a free GUM toothbrush. Click this link and enter the giveaway. Share the unique link that appears after you sign up. When you get at least 5 friends to enter the sweepstakes by using your unique link you automatically win a GUM toothbrush.

You will also be entered to win an iPad mini.