I made this custom tumbler for a friend for Christmas. It came out very nice!

What you'll need:

A vinyl sticker with your design

masking tape

A Stainless tumbler

Rustoleum Enamel Spray Paint

Optional: Cricut machine with supplies and software

Start out by Designing your vynil sticker that you will use as a mask. Feel free to use a premade one if you do not have access to a vinyl cutter. Apply the sticker using the contact paper it comes on making sure it is level and straight.

Step 1: Design and Apply Sticker

Start out by Designing your vynil sticker that you will use as a mask. Feel free to use a premade one if you do not have access to a vinyl cutter. Apply the sticker using the contact paper it comes on making sure it is level and straight.

Step 2: Mask, Paint and Let Cure

Next mask off the bottom piece of the tumbler. You can get a better masking job by using an X atco knife to push the tape into the bottom crease. Next apply three light coats of your spray paint. I prefer Rustoleum high performance enamel as it is what i paint all my cups with. Just be sure to let your paint cure for at least one week or it will scratch and chip!

Wait 12 from paint to weed out the mask. At this point the paint should be dry enough for you to handle the cup lightly but wet enough for you to still remove the mask. Lastly, lightly sand the lip of the cup to remove any over spray and you are done!