I saw this art project on another early childhood blog and had to try it in my class. This is a very neat concept and a different art technique.
Use regular white coffee filters. Cut out fall leaf shapes. Allow students use markers to color on the coffee filter leaf shapes. The students can do any colors and designs they want. The more color on the coffee filters the better and brighter the tie-dye will turn out.
When students are finished coloring on the leaf shapes, use a spray bottle to spritz water on them.