I want to get my hands on some rubber domes that I can make use of in my own devices. The problem I've had so far, chopping up keyboards, is that the new ones seem to use the rubber dome only as a means to press two sheets of plastic together to form the connection. Soldering to those sheets looks like an effort in futility, so I think that perhaps I want the other style rubber dome that has the conductive circle at the bottom that bridges an open circuit when depressed. Anybody know what keyboard I could hack up to find such a thing? I'd prefer one with a small travel, <3mm, but 4mm would work too I guess.