Might want to try one of
these. I personally have switched from Campy chains to Wippermann. The work just as well. It appears, from reading an article on campyonly.com that a Wippermann Connex link may also work on you (wider) Campy 10 speed chain. See if any of your LBS have either the Superlink III or a 10 speed Campy connex and give them a try. No tools needed!!