I'm sure the designer/maker could design/make a suitable clamp.
He does:
http://www.flickr.com/photos/garthnet/7110924627/in/photostream
@Regal 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.
He does:
http://www.flickr.com/photos/garthnet/7110924627/in/photostream