Then something is wrong. Your prices are too high or your quality is not what people are looking for. If you're in the dog business and you can't sell one pet tag, you've got something else going on. Show some photos of what you did and let us look at them, along with the pricing you offered them and we'll try to help.
What did your display look like? Did you have one? What did you do, walk in with a couple of engraved tags and show them? Explain what you have, show photos of what you did, and tell us how you approached it and we'll see if we can't help you figure it out.
You're not going to sell them at Petco, when they have a machine in their store that makes them. Think stores that sell puppies and kittens, breeders, vets, etc, locally owned pet stores.
Lasers : Trotec Speedy 300 75W, Trotec Speedy 300 80W, Galvo Fiber Laser 20W
Printers : Mimaki UJF-6042 UV Flatbed Printer , HP Designjet L26500 61" Wide Format Latex Printer, Summa S140-T 48" Vinyl Plotter
Router : ShopBot 48" x 96" CNC Router Rotary Engravers : (2) Xenetech XOT 16 x 25 Rotary Engravers
Real name Steve but that name was taken on the forum. Used Middle name. Call me Steve or Scott, doesn't matter.