Waterproof housing for shuffle or Nano ?

[sas76]

Hi,

I do a fair bit of kayaking, lakes rivers etc (not getting very wet) and I am trying to find a waterproof case for a shuffle or Nano.

I only need very basic controls. Volume up/down would probably be enough
Anyone have any experience or advise ?

I also have a older original ipod, but any cases I can find seem very expensive.

Cheers