Worth a try: http://www.sheldonbrown.com/tooltips/bbcups.html
However, if a workshop with a proper tool couldn't get it out, I'm not sure if this will help you.
@ehren_fried_chicken started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Worth a try: http://www.sheldonbrown.com/tooltips/bbcups.html
However, if a workshop with a proper tool couldn't get it out, I'm not sure if this will help you.