I'm working on a 3/4" I use Fiskers punches and junk mail. I have the 3/4" and the 1" size. My punch pooped out so fiskers sent me a new punch. great company to work with too.
If and when, and that's a big IF, i'd do it in 1", these 3/4" are crazy to work with. I'm saving the 1/2" for when they lock me in the institution for crazy quilt ladies.
have fun. see ya there ^.