I split the two dragons into two pieces so that the hologram of my print bed would be incorporated into both surfaces. I added two nipples so that the little dragon could be neatly glued back into its original position with a drop of superglue. (edited)
I used a 0.4mm nozzle and only had one bottom layer. After testing, the tag can be read from the top so maybe centering the NFC tag cavity a little bit upper could be an enhancement.
