Quick washi

Here is a tip that helps the washi nit stick to even playing cards. Some tape sticks to the card if you don't use it right away. Use a piece of mail packing tape on both sides of the card. Or even the clear scotch tape works. If you use packing tape you can use a longer card like an index card! Pass on thus info!

If you are sending washi samples and not deco tape samples, playing cards should not be a problem. ☺

The cheaper dollar store type playing cards tend to render the first tape that touches the card unusable, as it peels up the design. You could compensate by giving extra tape, or using packing tape on those type cards.