I also lost it, but I've been messing around with them. A kaleidoscope is
made by putting 3 mirrors together in a triangle and looking through the
end. Trace the film cannister and draw an equilateral triangle in the
inside measurement. That is the width of each piece of mirror board or
mylar or whatever you are using for a mirror. The length is the
cannister's length minus the lid. You can just carve a hole in both ends
and look through and get an image, or you can use the clear lid and fill
the little concave space with tiny pieces of plastic or seed beads or
colored paper, and then seal it in with some clear plastic ( I used a
piece of overhead plastic.) The image is not very clear, and won't be
unless you actually cut pieces of mirrored glass. I think it would be
good for lower grades, but I'm struggling to improve the quality for high
school kids. Adding a fish eye lens would be wonderful--I tried the glass
blobs you can get at Walmart, but they only made it fuzzier. Anyone have
a suggestion??
Sid