Want to roll like a real Miamian, or at least the kind who pops up in hip-hop videos and furthers the stereotype of a glamorous party city? Then you need to be riding, not rolling, and it has to be on the water like in that "I'm on a Boat" SNL short. Sunshine Boating Group can make your delusions of grandeur a reality. Join the likes of Kevin Garnett, Christian Slater, Mel B, Britney Spears, and Lil Wayne, who have all been spotted here. But you don't have to be an A-lister to rent a Sunshine boat. Show off for your in-laws and clients, if only for half a day. The Miami outfit specializes in powerboats longer than 45 feet — Sea Rays, Sunseekers, Azimuts, Lazzaras — and rental includes captain and crew, fuel, and dockage fees. Half-day (four-hour) rentals of 45- to 50-footers start at $1,500, and $2,500 to $3,000 gets you a boat for a full day (eight hours). Larger vessels for full days cost $3,500 to $5,500.