Using some basic materials you achieve a great looking stained glass window. Get he children to design their own windows on a piece of A3 paper. I give them plenty of references and resources to help as well as an option of frames so they get a sense of scale. Once they have draw it out get them to trace it though onto a plastic zip wallet (cut in half) with a permanent black marker. Now all they need to do is use sharpies to colour in the sections. Once complete, cut out and stick a sheet of tin foil behind. Finally cut out a black card frame and you have your very own stained glass window.