I couldn't find anyone who makes climbing icons last time I looked, but I do make icons myself. I'd be happy to make something if you give me an idea of what you would like or point me in the direction of some pictures.

I'm an ex-London climber (I moved away last year) and I'm all about the fun. There are some great walls there, The Castle was my favourite for bouldering. They had such a great range of problems at the lower grades.