A modified toy boat from EBAY, the original electronics has been removed and a BL set-up and 2S LiPo battery has been installed. Quick, "cheap" and fun just like a "Kinder egg" 3 things in one packaged ;-). The set-up do allow it to run on 3S but it's more scream than more power.
Short video (Motor: Turnigy 3800KV 2627) (ESC: 40a ESC Sky Walker) (9/10)