What do we do with conkers: well, they have holes drilled through the middle of them, string threaded through the hole and knotted, so they hang on the string, and then you meet with fellow conker owners, and take it in turns to bash hell out of each others conkers (in turn of course, we are British, so are trained to queue for everything!) until one gives up the ghost, and then yours is known as a 6er (if it has killed 6 other conkers).....the number system goes on until it becomes ultimate champion, or is killed by someone elses champion. Various tactics are employed to make your conker harder than the others: I am sure people have their own, but the ones I know of are soaking in vinegar, or baking in the oven.
That is the gentle art of conkers..........action shot!
This link is worth a look to see conkers in action. Nice photos there too.