You can find many local restaurants on Restaurant.com offering deals like pay $2-10 for a $10-$25 gift certificate. It's legit. The only thing is check the fine print for when you can use it and most of them require a minimum purchase. But if you buy a small amount ($10-$25) it's a great deal - larger gift certificates are great for group/family outtings.
These are the current restaurants in Newark doing it: