Tony, I would check with the customer showing them examples of YAG and Cermark marking. I'd guess the customer will pick the cermark. Why I say that is because I'm marking things for the guy with the YAG, as he likes the look better.

As far as the cermark, just cents a piece. I have a big piece of cardboard that I lay the pieces on, spray all at one time with a sprayer that I got at Harbor Freight for apx. $12.00. I have a customer that orders a 100 a month, but not all at one time. I spray them all though and store them in a box and just pull out as needed. Makes it much more cost efficient.

Zona