Cut 12 Strips of white paper for each student...2” x 12”, stacked on top of each other and stapled together at one end.
(In the photo it looks like there is one strip of white paper....there really are 12 pieces there. Biggify and see...)
Prepare Multi colored strips of Railroad board (sorta thin colored cardboard)(google it..) , 3” wide x 20 (+)” long, one for each student.
Close up of the stack....
Don’t do anything to the first strip on the stack.
You decide this by tightening the 'fence' and looking at the resulting design within the cardboard ring.
The smaller and tighter you make the circle, the more the design gets compacted.
Here I glued three of mine together to make an interesting mobile.