From the Fantasy of Flight website:
All Florida Residents are invited to visit Fantasy of Flight with a special buy one, get one free admission offer this summer. The complimentary admission is valid when accompanied by a guest purchasing a paid admission ticket of equal or greater value. Offer valid July 1 – Sept. 30, 2011. Individuals must present proof of residency at the Fantasy of Flight admission desk to qualify for the discount. Not valid with any other offers, discounts, annual passes or during special events.
Time for a family roadtrip.