DestinationCoupons offers Coca-Cola Orlando Eye Adult Ticket for $18.75. (Click the red "Buy Now Online" button to view this price.) That's a buck under booking directly and $6 under what you'd expect to pay at the attraction for day-of admission. It's the tallest observation wheel on the east coast and features 30 capsules with iPad tablets for a guided experience. Book this travel deal by December 30; tickets are valid for one year from purchase date.
Destination coupons also offers a Child's Ticket for $15. While that's tied with booking directly, it's $5 under what you'd pay for day-of admission.