Colored water with food coloring
 
  
   	 
Colored water with food coloring, put branches, twigs and woolen thread in some of them, out in the cold. Those without "stuff" gets kids allowed to try.
 
  
   	 
Colored water with food coloring, put branches, twigs and woolen thread in some of them, out in the cold. Those without "stuff" gets kids allowed to try.