We are happy to provide custom laser engraving services.  There are many variables involved, so we would need to be contacted to give an accurate quote, but services start from $25.00.  This would cover the costs associated with setting up the files and creating the graphics and running any tests needed to ensure engraving quality.  Unfortunately we are not able to engrave customer supplied items at the moment,  unless we have worked with the product before.  We usually runs several test pieces to make sure we have our settings dialed in, and some products might not be as acceptable for laser engraving as others.  Please contact us for detailed quotes.