What kind of paint could you paint on a window and wash off at a later time?

I am thinking about doing some art work on my bedroom window, I'd like the paint to be translucent so that the light can shine through like a stained glass window. But I'd also like it to be able to wash off easily when it has to come off. Anyone have any suggestions?What kind of paint could you paint on a window and wash off at a later time?
I have been using Gallery Glass for 15 years. It IS stained glass paint. It doesn''t wash off. It PEELS off. I change my door window once a year.





Google plaid.com. There are also many other brands in craft stores that work as well. Colors can be blended and shaded. GREAT product!!!!What kind of paint could you paint on a window and wash off at a later time?
Artist Watercolour paint.


Another way to do it is to do the painting on acetate and dab glue at each corner to stick on the glass.


when your tired of it you can rolel it and store it in a tube for another day.
You could use window advertising paint. I was going to say watercolors but the first time you got condensation on the window the art would be gone.