Captain BeagleBone, first mate GSM click, and a crew of Groove sensors.
When Nikola Tesla, whose poster hangs next to our showroom, gave a demonstration of his wirelessly controlled boat at Madison Square Garden in 1898, people were astounded.

You would think that now, more than a century afterwards, we would be indifferent to such a demonstration. Nope. Model boats are still as fun as ever.
Today you don't have to go digging through New York patent archives to see how to design one. Take this project that surfaced on Hackster.io. Take it step by step (it's a thorough tutorial) and you'll be able to control a model boat from your smartphone, just like Tesla did (Historians are disputing to this day whether he preferred Android or iOS).
Yours sincerely,
MikroElektronika