Some are shaped like swans

Usage examples of paddleboats.

It also set fire to a pile of paddleboats that Rupert Cringe had brought in for repair.

A large wooden pier had recently been built out into the middle of the Moat for the Castle children to swim from, and the enterprising Rupert Gringe had just started renting out his new invention, the small Rupert paddleboats, to those who fancied messing about on the water for an hour or two.

The cellar was long and narrow with a low vaulted roof, and the sounds of the paddleboats being dragged out of the boathouse echoed eerily through the walls.

Smoke came from the paddleboats as they stoked their boilers, readying themselves for the first wave of tourists.