On Mail Me So Art, Karen, the host, started a very interesting set of swaps involving technics. The first one was about transparency. The challenge was to create a card using any sort of transparency. I created this card which is made with a plastic sheet and that contains red, blue and yellow plastic triangles. The triangles move freely in the plastci cover and they create all sort of colors. I called this card "Primary colors."
And here is the card I got from Ellen Mika Brown. Unfortunately the scanner does not allow to see the very nice work done by Ellen with transparency.