Andy,
here the link I bought the Spinners, I´m sure, they will ship to the US...
But You have to extend the Cowlings, otherwise they are to small ( 5 mm )
http://www.trapletshop.com/gb/search?q=mosquito
http://www.trapletshop.com/gb/p/1308...le-spinner-set
Regards
Andy/Spitty