Hamish,

I see you are not accessible via email, so am posting these links here. They may or may not work with your rainbow kilt (and boa.)

http://www.sock-dreams.com/_shop/pag...oductID_65.php

http://www.sock-dreams.com/_shop/pag...ductID_223.php

Have you ever thought of trying to fashion the boa into a feather bonnet for a Guardsman effect?

Best wishes