I was talking with an inventive friend recently and she mentioned the issue of cucumbers not being naturally resealable (thanks Muriel).
Today’s invention is a way to seal up any longish fruit or vegetable in the kitchen which is likely to get dehydrated.
It consists of two forms of plastic ring element (light and dark grey). These can be screwed together to forms tubes of variable length so that, as a cucumber is shortened, the container can also shrink. This means that the air in contact with the fruit or veg is minimised and dehydration greatly limited.
The rings seal together in the same way as a contact lens case, and so it would be possible to store things with a liquid surrounding them (water, vinegar) if you wanted.