It would be interesting to know how much that it cost (in terms of fuel) to pull off this prank...
The time spent on flying the penis' outline is slightly less than 30 minutes. According to flightradar24 the plane is a Vans RV-12, which consumes about 5 Gallons per Hour. A Gallon of AVGAS 100-LL costs around $5 in the Southeastern Region, including Florida.
If he's renting from a club, I'd estimate the cost to the pilot at anywhere between $50 and $80.