Pondy, first off welcome to Pond Boss. When you say small pontoon boat just how small are you talking about? If you are talking about the little (9 to 10 foot long ones) then several people here have them. I forget what they call them but they are sold through Bass Pro Shops. Or are you talking about a full sized pontoon boat such as the one Bski linked above?

JHAP
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"My mind is a raging torrent, flooded with rivulets of thought cascading into a waterfall of creative alternatives."
...Hedley Lamarr (that's Hedley not Hedy)