Tags can be bought at any Jo Ann fabric store or AC Moore. You can also use this mixture on fabric.
1 cup boiling water
1/4cup instant coffee
1 teaspoon of vanilla (for scent)
mix in glass bowl till all instant coffee has been dissolved. Immerse tags,and let stain soak for a few minutes. Remove tags and blot with paper towels.
Place tags onto cookie sheet and bake for about 7 mins in a 250 degree oven . Be sure to keep a close eye on them.