There are "remakes" of the Machs. They are from Depo. I found them on a website called Certifit. $180 a piece tho. They look identical an I have heard that they are pretty good quality as well.
I don't know if you like the halo look but there is a set from Spyder that were plain and simple. I was gonna buy them but I decided I want the machs. http://www.amazon.com/gp/aw/d/B004W4OPTM