RE: Spurs...
Yes, the dremel will eat the bone if you hold it on there, soyou have to be a littlecareful. You'll be able to easily see where the scales end, and the bone begins. It's not like as soon as you touch the bone, the whole thing dissintegrates.
It's super-easy, really. You can even use the dremel to smooth out the sawtooth marks on the ends. It does a really nice job.
Try the nail polish thing too. It really brings out the color.
It's really simple, but I'd still recommend that you start out on one of your smaller sets. By the time you're finished, you'll have the smell of turkey scale sawdustpermanently engrained in your sinuses.