recycled climbing rope
Climbing ropes have a shelf life and become unsafe at some point to continue mountaineering with. Fortunately there are some fantastic ideas out there to reuse the nylon ropes that we have no shortage of here in Boulder. Our healthy climbing community puts out quite a bit of material fit for recycling.
For more climbing rope ideas, see Oscar Andersson's climbing rope sofa!
I made my own retied climbing rope doormat using a combination of this PDF!