Ma Ikkada

The Ma Ikkada was a raft used by Monkey D. Luffy and Sanji for the Donut Race in the anime. Sanji provided power for the raft by rowing at the beginning, then Luffy used his power to become a propeller, greatly increasing their speed, but the raft was destroyed while escaping the Long Ring.

Trivia

 * "Ma, ikka" means "whatever" and "ikada" means raft.