Need window film that makes prisms when light comes through it. See picture for details.
You can get stained glass window on eBay and Amazon. They cost about $100 to $150 on average which is a really good price. you can go to http://www.amazon.com/s/ref=sr_nr_p_n_material_browse_mrr_0?rh=n%3A1055398%2Cn%3A!1063498%2Cn%3A1063278%2Cn%3A1063302%2Cn%3A14236221%2Cp_n_material_browse%3A335846011&bbn=14236221&ie=UTF8&qid=1337108015&rnid=335840011#/ref=sr_hi_4?rh=n%3A1055398%2Cn%3A!1063498%2Cn%3A1063278%2Cn%3A1063302%2Cn%3A14236221&bbn=14236221&ie=UTF8&qid=1337108046 and http://www.ebay.com/sch/Stained-Glass-Windows-/151721/i.html for more information.