Please do post your method and the results if you give it a try! I have a tan/buff coloured corduroy jacket that I bought at a thrift store too, with the intent of converting it to a kilt jacket. Leather buttons and patch pockets make it a good candidate. But I've been wearing it for several years just with Saxon attire. I HATE HATE HATE the colour, as it doesn't really go with anything. Doesn't even compliment anything either. It really needs to be a darker brown, but I've no idea how to dye a jacket without ruining the lining.