Bur-Lane’s window badge backs are injection molded from 1/16” ABS and available in black or white in 1 1/2” x 3” and 2” x 3” sizes.  Each back has a 5/8” recessed slot that, when paired with a front piece, allows the user to insert a name.  The result is a name badge that you can use over and over without the need to engrave a new badge. 
The front side has adhesive pre-applied for easy assembly.  The backs are blank allowing you to use the fastener of your choice.

Fabricate your own front pieces or let them cut it for you.  Choose any material you want and they can custom cut them for you.  MORE INFO