The genius of these water cannons are their simplicity. A single moving part -- a big fat piston with handle grip -- squeezes a wide stream of water down and out their large diameter tubes. Filling them you reverse, sucking in water via the same orifice. When loaded (takes about 2 seconds) they gush water at least 30 feet. Impossible to clog, and nearly unbreakable, both kids and adults can operate them around pools, lakes, rafts, canoes and boats. These are the regulation-issued weapons at our place.

-- KK

Stream Machine
$12 -- 1 foot
$16 -- 2 foot
$20 -- 3 foot
Cabela's

Also from Amazon.

Manufactured by Instant Fun