My preschooler just discovered how to make cool crinkly lines on his watercolor paintings! It is very simple. First, paint your watercolor painting. My son called this one Tractor in The Morning ( don’t ask 🙂
While the painting is still wet, cover it with plastic Saran wrap, making sure not to straighten the wrap out -you want the wrinkles:
Leave the plastic wrap on until the painting is dry and then just pull it off!