I had to print a tag for my escapist dog (I was two times to the dogcatcher this week) and there was a Joseph by Joseph website contest! 

It is a foldable, customizable (added the Fusion360 .f3d file) dog tag. One side with pet's name, other side with owner's phone, inside whatever you want to (thanks message, medicines needed, etc).

File was created for a 5 months old Spaniel puppy. It needs to be scaled around 150% for 12-15 kg dogs, 200% for 15-25 kg and 250% for bigger ones.

If printed 100-150% it needs a 0.2 nozzle to print texts fine. It works ok with 0.4 nozzle for 200% or bigger.

Sorry I don't know how to upload a “just-write-text-and-get-your-customized-file” so this needs to delete current letter bodies and sketches and create new ones.