This is a nice fun project to do with your kids to create some Halloween decor.
Step 1: Draw a spider web on a large white sheet of paper with white oil pastels.
Step 2: Prepare water color paints in water by adding some water color paint to some warm water.
Step 3: Apply colored water and some extra extra water color paint if you want a higher saturated look
Step 4: You can also pour on a bit of salt at the end while it is still dry to create some nice texture.