Space Float

The Space Float is a ship part in Pikmin. It allows someone to stay adrift in space if their ship is shot out from under them. Olimar says he always carries it around in case of an emergency. This part can be found in The Forest Navel, inside a Breadbug. After being collected, this ship part does not change the S.S. Dolphin's appearance.

Collecting the part
The Space Float is found in the stomach of a Breadbug. Defeating the Breadbug will make it drop the part. The easiest way to obtain it is to get the Breadbug to pull a lightweight item, such as a pellet or Shearwig carcass, then throw as many Pikmin as possible onto the item, which will slowly drag it towards the Onion. Once it reaches the Onion, the Breadbug will lose almost all of its health. The rest can be depleted by throwing Pikmin precisely on top, or by getting it to carry another item and dragging that to the Onion too. Upon being defeated, the Breadbug will drop the part.