How to Make Your Own DIY Color-Changing Mug

Color Changing Mug

A Little Craft In Your Day

Add some fun to your coffee break by making your own color changing mug. All you need to make your own is a plain coffee cup, color changing tape, and a few other basic crafting supplies and you can make a mug sure to put a smile on your face every time you fill it up with your favorite brew of coffee or tea.

This fun DIY would be a great activity to do with kids, by having each child decorate their cup which can be used for hot chocolate once the cup is complete.

What You Will Need

  • 1 mug with thin walls or a disposable paper cup
  • Heat activated color changing tape such as Chameleon Skinz
  • A pen or permanent marker
  • Acrylic paint
  • A paint brush
  • Craft scissors
  • Parchment paper

Steps for Making a Color-Changing Mug

  1. Select your mug, a paper cup or cheap mug with thin walls would work best as the color changing tape will not work on well-insulated mugs. Before starting the project cut a small piece of heat activated color changing tape on the mug you wish to use and fill the mug with boiling water to test if the tape will work on the mug you selected.
  2. Using your scissors cut a piece of color changing tape that is approximately 15 inches long and place the tape onto a piece of parchment paper. If you are using more than one color of color changing tape proceed to cut a piece of tape in every color being used and place the tape onto parchment paper.
  3. Using a pen or marker draw your design onto the pieces of tape and cut out the shapes using your scissors. If you have difficulty cutting out patterns try using a marker that is the same color as the tape so that if you do not cut exactly on the line, the marker or pen mark will not easily be seen. 
  4. Paint your mug your choice of color using acrylic paint, keep in mind if you are painting on ceramics to purchase a suitable craft paint designed to be durable enough to be washed. If you are painting a paper mug and standard acrylic paint avoid painting all the way to the lip of the mug so that your mouth will only go onto the non-painted area. When painting your mug make sure to paint thin coats of paint to give a smooth finish that will not chip off. Typically it will be necessary to paint two to three coats of paint for an even finish. Black paint provides a bold contrast to the color changing tape, but a paint color that matches the tape will provide a more subtle change that will be visible only when the mug is hot. Meanwhile, if your mug is already the color you want it to be you can skip painting your mug entirely.
  5. Peel off the tape shapes from the parchment paper and position them onto the mug. Make sure to press out any air bubbles and apply firm pressure over the entire shape to ensure the tape has fully adhered to the mug. Continue positioning and sticking all the cutout shapes onto the mug until the design is complete.
  6. To use your mug simply fill it with your favorite hot beverage such as coffee or tea and watch your mug change color.