friggin' FINALLY

I've finally finished my Forecast (except for sewing on the buttons)! Just in time to move to muggy New York City. It finished blocking last night, and I was able to bring it out to knitting night at Sundara's. Now I just need to sew on the buttons. Only, I bought those woven leather buttons, and if I ever want to hand wash/reblock this sweater, I'll need to remove them. It was suggested that I attach the buttons with metal shanks on the wrongside of the button band. Anyone out there who knows how to do this? I'd love to hear your advice.