Boatsetter - Rent a boat, with or without a captain. Powerboats and sailboats, anywhere in the country.
Daylui.com - Daylui is an "Airbnb for everyhing else".
Samboat - The global airbnb for boats
Fat Lama - Borrow stuff you need. Lend stuff you don't
Antlos - Airbnb for boats
Idle - Rent Any Thing - A Peer-to-Peer Renting Community for Idle Goods