"They would be useful right now" I here you say to yourself, well how about you get yourself a pair, not by going to a shop and buying them (which I believe might be nigh impossible in the UK) but by getting some short nails or screws and nailing them into the sole of an old pair of runners. Yes its crazy but from online reports it seems to work.
For the original source (as far as I'm aware) and a short instructable, check out The Sunday Adventurer. Originally seen on Kate's blog where she was putting them into both her runners and her crutches, eeek!












