Dougie,
The emblems that Ron mentioned are available through 'Finishline' in the USA.
www.finishline.com
They will send a catologue. Enzio and Paula there will have them back to you very quickly. The cost with exchange rates, Air Postage etc. is still cheaper than anyone here in Australia.
If I understand it you may be wanting a Cobra that was in decal form on the guard of the early Ford Falcon Cobra Coupes.
I think they are still available from Ford. You may be able to use a router to trace and cut these onto wood once you stick them down.
Cheers
Bernie