I forgot to mention, you can make the brass belaying pins brown using browning solution, an acid solution which is similar to blackening solution, except you get brown, of course. Or, you can just make then tarnish using ammonia fumes. WASH the brass parts in denatured alcohol, and only hendl them afterwards with rubber gloves to prevent finger print oils getting on them. Get small, sealable container, pour a little houseolh ammonia in, and place piece of styrofoam or wood inside to float like a raft, place the brass parts on the raft, NOT in the ammonia, seal the container, then place it in a warm area like in a warm room in sunlight. I just leav the container on top of the water heater in the house. Five hours later, you have brown parts.