Saw this one another website... Dingo | Facebook
Not sure how much Dingo this will get you but $20.00 sounds good to me.
FREE $20 Coupon to Dingo (Facebook)...And An UPDATE!
Dingo is giving away a $20 coupon to their first 25,000 fans. When you "like" Dingo Bones on Facebook, add your e-mail to their tab "Join My List.