This is a craft I’ve done since I was a child.
Puffy Fabric Paint
Lay out a piece of wax paper. I haven’t tried it, but I wonder if freezer paper would also work. Plastic wrap will not work, because it doesn’t create a smooth surface for the back of the cling.
Draw designs using the puffy paint. Start with outlines and any fine details (like if you want to add an arrow through a heart). Fill in large spaces last. Don’t apply the paint too thickly or thinly–an even layer that covers the paper fully is sufficient.
Because you can see through wax paper so well, it’s easy to place a pattern underneath the paper to trace an outline. I used a post-it under my wax paper.
Make different sizes and colors. Think about how you might want to place the clings as you choose your size and color combinations.
Allow to dry. Peel off carefully. Don’t worry if it seems like the wax is pulling off of the paper. The clings will still stick.
Stick in the window. The colors in the photo don’t show up well because of the backlight, but you get the idea. These are very cute in person.
You could make these for any holiday or season. Just get creative!
Happy Valentine’s Day!