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Floatie, air mattress , "floating thing that blows half way to Japan with you on it, sporting only a green Speedo, after you fall asleep and don't wake up until well after dark", though I could be wrong.
Never tried to bike with one, that WOULD be a trip.

I have to wear green so it only slightly clashes with my new pink li-lo :)

Is green lucky in Japan? Hopefully!

Ha haa. I don't know about Japan, but getting picked up by a freighter somewhere in the Pacific, in your speedo and pink lilo, will surely get SOME kind of reaction from the guys on board.

First impressions and all :)