Projecting on windows

i dont know the exact name in english, but in spanish its " vinilo blanco " o guess it will be “white vinill” ?

http://www.google.com/search?um=1&hl=en&biw=1680&bih=864&tbm=isch&sa=1&q=vinilo+blanco&aq=f&aqi=g4g-s2g1&aql=&oq=

its cheap, it sticks, great for video proyection and its cheap