the bby patriot is a cool micro that could be set up for a pool. I'm building a small boat out of a block of foam then I'm going to put thin coat of glass and then carve out the foam on in side needed for power plant. I wanted somthing kinda like the micro mogi without the price tag. Main thing is cheap, small, fast and self righting. $10 for hull foam and glass, 12 inches, 27.00 brushless speedo and outrunner ebay , flood chamber and small bubble on top for self righting. Homemade hardware.