In article , Garth Almgren says...
Around 10/12/2005 11:43 AM, Tamaroak wrote:
I have a 50 ton USCG Master's license, but no certification to teach
powerboating, although I do it. People who go out with me have no
documentation to demonstrate that they learned anything. I would like to
be a certified instructor and have found some companies that do this.
CAPT. JEFF
I used to be (and may still be, I dunno) a Motorboating merit badge
counselor... Does that count? 
I pretended to get my six pack ticket once, it was easy.