That is awesome, Jayko! A brilliant idea... please post more pictures!

Were you afraid that it would flip over and get your battery pack and motors wet? That is the one reason I haven't explored NXT use on water. It looks very sturdy though.
Just making it to the top ten is a huge feat. Great job, my vote is yours.
Im pretty sure its stable, I ran it around the pool a couple of times to check. Only problem is that sometimes the right boat will start to fill up with water, causing one side to sag. With upside of stability, I get the downside them not looking all that well. Thats why I made them removable!
Thank you everyone for the votes, really means a lot to me!
Edit: I added more pictures! If/when I get new batteries, I'll attempt to upload a video of it in action!