Shoot, I'm down with that! I've been gardening a lot for amber so if the option of crafting exalted mastery amulets were available, I'd jump on that opportunity right away!
...The only downside I see would be that each recipe would also require some combination of Merle's Whisker, Amber Dust, and Turquoise...some of the most pain-in-the-butt reagents to get in the game currently. If KI decides on something like this (much sooner rather than later ), then I hope that they don't make the recipes require a bunch of the hard-to-get reagents (you all know which one's I'm talking about)!