Any sugestions to purchase rubber surrounds ?

Hello there,
in germany I sadly cannot find suitable RUBBER surrounds to repair my nearly 20 years old fine focal speakers. Problem is the 10" woofers which need new surrounds.
Any suggestions to purchase rubber surrounds in the U.S.A or elsewhere ?
Thanks in advance

http://cgi.ebay.com/10-Butyl-Rubber-Surround-Kit-Woofer-Repair_W0QQitemZ160325370320QQcmdZViewItemQQptZLH_ DefaultDomain_0?hash=item25542301d0&_trksid=p4634. c0.m14.l1262&_trkparms=|301%3A0|293%3A2|294%3A30

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E Bay, 10 inch rubber surrounds...a bit pricey....saw some from China for $6.95