Zach Hipps built a water-powered dot-matrix printer on the back of a Onewheel electric board. Eight solenoid valves release timed bursts of water to form letters on the pavement as the board moves. After fixing leaks and adjusting nozzle angles, he successfully printed 'KINDNESS.' Faster riding stretched the letters, so he also tuned the valve timing.

NYU Tandon School of Engineering's WorMa is a worm-like robot that adapts to land and water by pumping internal water between tanks in its head and tail, shifting its center of mass. The 50 cm, roughly 1 kg robot has five links, with a central pump moving about 300 g of water.

Moving the water forward improved traction on slopes, while shifting it toward the tail made swimming faster. To climb steps, the robot moved the water from head to tail and back again while changing posture, allowing it to clear steps up to 15 cm high.