Neon colors perfectly match the summer that is coming with everything here in California. If you use a black background on the rocks, the colors stand out even more!
(affiliate links for your convenience)
The two colors of acrylic paint I use most are white and black because they are the ones I use to paint backgrounds. Therefore, I always advise you to have a larger glass of these colors at home.
As the coverage of this brand is good, I only needed a layer of black. Let it dry or use a heat tool to speed up the process.
With a very soft pencil (I like 4B), write the words or draw the image that you will later work with puffy paint.
Cover the letters or design with dimensional paint.
Spread the good!