A suggestion (and photo) from Jill:

I have a pile of old hot water bottles lurking in the cupboard beneath the sink in my bedroom. Some have actually leaked, others have simply started to perish – but none of them are fit for their original purpose i.e. to warm my bed!

The trouble is, I just can’t bear to simply throw them away in the bin – it seems such a waste.
I have never seen a recycling centre with any facilities for rubber products.
Any suggestions as to what else I can do with them, as the pile continues to grow !

Ideas then?