These below seem a very cheap fix but the postage would be the deal breaker unless you note the brand and try say Germany etc. But it gives you a few ideas which you might be able to clone yourself.

http://www.intheswim.com/Pool-Opening-and-Closing/In-Ground-Winter-Pool-Covers/Pro-Strength-Super-Polar-PlusIn-Ground-Pool-Covers/


http://www.intheswim.com/Pool-Opening-and-Closing/In-Ground-Winter-Pool-Covers/In-Ground-Leaf-Catchers/