Colorful and youthful yet elegant, these envelopes add a personal touch to invitations, thank you cards and more. Use watered-down acrylic paints for this project to mimic the texture of watercolors at a lower cost.
Choose acrylic paints, in as many colors as you'd like, that are suited for your event. Hosting a summer pool party? Try several complimentary neons. For a wedding or engagement party, consider pastels. You will need one small container per color.
Pour several drops of acrylic paint into a container, then add water in a nearly equal amount. Mix well. Add more paint or water as necessary until the consistency is similar to that of milk. The mixture needs to be runny, but the color should not be too diluted. Repeat until you have individual mixtures for each color you plan to use.
Cover your work surface with newspaper and lay out your plain white envelopes end to end with their fronts facing upward. This is best done in batches, depending on how many envelopes the size of your work surface can accommodate.
Dip a thin-tipped paint brush into one of the "watercolor" mixtures. Hover your brush over the envelopes and splash the wet paint onto the envelopes, using a sharp flicking motion with your wrist. Dip the brush into the paint again, if necessary, and continue splashing, moving randomly across the envelopes as you do so.
Rinse your brush before moving onto the next color and following the same steps. The colors on the envelopes do not need to be even or balanced; their imperfections are part of their homemade charm. You may wish to turn over the envelopes to repeat the process on the opposite side. Let the envelopes dry completely before turning them over, addressing them or placing cards into them.