The VortX 2 Solar Powered RC boat. (not a commercial) Months of work resulted in a pretty cool solar powered boat. It is made from scratch out of household materials.
Length- 44"
Width- 18"
Height- 9"
Weight- 6lbs
Min water- 1"
Power- 6.5v 1-1.8 A (time of year)
{each fan uses more than "400mA", more like 600}
It is a vast improvement from previous boats (see beginning pictures)
Narration- AT&T Natural Voices Text-To-Speech
Music- "Shiny Tech" by Kevin MacLeod
http://incompetech.com/music/royalty-free/
Licensed under Creative Commons: By Attribution 3.0