Large pan full of water and add about 30 tea bags... ( I know that sounds like a lot, I buy the store brand so it's not too expensive) You can also use instant coffee for this technique. Boil until you get a deep rich tone to your water.
Using tongs, separate the tags in the water so the tea is distributed properly. The circular reinforcements will drop off, but there is no need for these
Lay your tags out to dry
While still damp, roll your tag in a ball and squeeze tightly, unfold and lay back out to continue drying.
I love the old look the wrinkles give to the tags and applying whitewash or Distressed Inks is so easy to accomplish an old look.
Once again, the next step is optional but I love the technique of leaving a cup stain on some of my tags. Your tea or coffee mixture needs to be very dark in order to get a nice tea stain.
And the final step that I apply to some of my tags is rolling the edges with a skewer, pencil... etc. to give it that funky old look. Make sure your tags are still damp because when they dry the rolls will be set.
Then you have a whole lot of little canvases ready for your art. I know there are many tutorials on the internet for these techniques but you can never have too much inspiration. The plain manila tags can be purchased at my Etsy shop @ https://www.etsy.com/listing/94773701/manila-tag-number-8?ref=shop_home_active_6&ga_search_query=tag
Happy Crafting..... xoxox Toni