This is a Keychain that I designed for a cruise gift exchange.  This is a double sided keychain ,  I found it easiest to put a square of white paint in the corner of the acrylic to make it easier to set your crosshairs..
And I placed double sided tape to the back of the 12inch x 12 inch just in the corners to keep it in place.  As I am doing a double sided coin keychain.+