Bubbles and Rainbow Glasses - They both use similar techniques and mediums.
See the lessons more in depth here...
http://tabithaannthelostsock.blogspot.com/2013/04/blow-you-mind-or-burst-your-bubble-or.html
http://tabithaannthelostsock.blogspot.com/se

This is a final image, you can pin it or share it on any social network.