This is the result of my prototype testing. Con-badge rigged prints, clear-coat sealed, with a set of "puppy tags." The tags are actually half the size of military dogtags, but they still carry the detail and four lines of abbreviated text on one side, plus whatever simple graphics you want on the other side.

To demonstrate double-sided conbadges, I used my own art on the front face with the QR code, and the image  FangKit drew for me as an example on the backside. (To be clear, I won't print anyone's art but my own on these badges unless you can prove to me that the art you want printed is stuff you drew or paid as a commission, or is public domain images like the pawprint I used here.)

Also, reference material helps. The more material and the better the refs, the easier it will be for me to meet your request.

Static QR codes are freebies. Any fellow fur with a smartphone could scan your code and key into whatever site you want, or your E-mail, or anything a QR code can encode.

Note: at present, chain is not included. It is included here for demonstration purposes.

If anyone is interested, please comment, and I'll open up commissions.

Shipping varies by location.