In reply to andrew ogilvie:
Hi,
You could use ROG (Recycle Outdoor Gear). ROG allows you to post an ad to sell or swap for outdoor clothing or equipment. It also allows schools, youth groups and other organisations to post ads seeking gear. ROG was set up by Sara Howcroft, who was one of the founders of Rohan, and it's endorsed by the Outdoor Industries Association. So, you could either do an ad offering your old gear for donations or contact someone who has an ad up seeking gear.
Another option is Green Peak Gear. Green Peak Gear is a pilot project with the support of the BMC that’s trying to see if a viable, self-supporting and long-term business reusing and recycling climbing gear in the UK might be possible. It collects used climbing gear and remakes and sells it as new products such as rope rugs, dog leads, dog toys, skipping ropes and jewellery. Anything not turned into a new product is recycled or given to other organisations with a strong community commitment. The last I checked, it was only really taking donations from collection bins at climbing walls in the North West, but that might have changed.
Hope that helps.