I have purchased the crosslinks under the assumption that getting additional parts (stems, nosepads) wouldn't be an issue. I called oakley and they said to check around at the O stores and the optometrists may have them too. I checked with the place I bought them at , 3 O stores (called) and lens crafters. Apparently they do not carry additional pieces for customization or are able to order them. Besides buying another set of frames for additional pieces/colors I am out of luck it appears. Does anyone know of any other avenues or ideas? I searched the forums and didn't see anything out there so I am not sure how prevalent these are.Thanks.