This is my RC airboat ( It's still in progress, it has no rudder and has to have the supports glued on the base, a foam kick board). The motor support is Lego with a wood motor mount glued on .

Step 1: Mount and Flotation

The supports are Lego bricks, girders, and pins. the mount is wood with four computer screws it's glued using plastic safe glue, it will be glued onto a kick board for flotation

Step 2: Electronics

For a battery I used a large lithium battery it's blue. The motor and ESC where off an old airplane that crashed, so was the servo and receiver. The motor is a black brushless motor attached to a silver spindle with a grey 10 by 9 propeller.