This is one of those "wow, I can't believe that actually worked" DIYs. The steps to creating beautiful DIY marbled paper are insanely easy. My favorite part of this DIY, of course, is that it's inexpensive (and you may even be able to find most of these materials from around your house). It's too easy to find DIY projects that end up being more expensive than just going out and buying a similar product. This simple technique is a fun way to spruce up snail mail, or any handmade card, and gives expensive-looking results for next to nothing in cost.
I used washi tape on the backs of my envelopes/cards that I would be dipping into the shaving cream/food coloring mixture. The tape prevents the food coloring from bleeding onto areas of the paper that you don't want color, resulting in a clean product. The washi tape provides that protective barrier, and is easily removes from the paper without ripping it. For cards and envelopes, I used my favorite Strathmore blank cards and envelopes. For bigger sized paper, I used watercolor paper out of my Montval watercolor pad, as used in this DIY watercolor galaxy project.
My first set of cards involved purple and red swirls, and then I very quickly got carried away and used every color I had. I used Neon gel food coloring, which was a fun change from the usual red, orange, green, and blue.
Once the shaving cream + food coloring mix is prepared, just dip, remove, let sit for 30 seconds, and scrape off the shaving cream. That's it! Use your newly marbled cards and envelopes as greeting cards, invitation cards, place settings, or bookmarks. You could also gather a few different sized marbled papers and unique frames, and create a collection of 3 or 4 frames to hang in your home for some wall decor.