Folk artists frequently incorporate the cross shape as well as other celestial objects such as the sun, moon and stars to convey religious and spiritual significance.
Commonly used crosses in peasant art include the sun cross, also known as the solar cross, wheel cross, Odin's Cross, Woden's Cross, and taranis cross.
You can find more cross images for your personal folk art design at Paper Crosses for Children and Art Projects | and Paper Egg Patterns for Children.