I bought a complete set off ebay for under £20.00.
Don't know about being foil backed so you may need them specially cut but these at £1.99 are surely worth a punt.
http://cgi.ebay.co.uk/Ducati-749-999...QQcmdZViewItem Buy 5 sets and replace them if they bubble up due to the heat? If you need it at a particular size, I can send you an eps file (whatever size you want) of the logotype which you could then take to your local vinyl sign man (if you have one) and get him to cut it out onto foil backed stuff. Hell, get him to make a few sets and the flog them on ebay - you can seem to sell anything on there.
Hope this helps
simon