To permanently protect from sun's UV radiation a permanent sun blocker is invented. To be permanent the sun blocker is tattooed into skin. A cosmetic side effect is that it is possible to have "seasonal" tattoos: They are only visible after exposure to sun light for a few weeks (the tattooed skin areas remain white while the others will darken).-- Uute, May 18 2002 Nice first shot across the bow, [Uute]. Welcome to the HalfBakery.-- phoenix, May 18 2002 what about the skin above the ink?.... or you know .. if you did put it there .. wouldnt it wear off?..yup-- Speed8500, May 20 2002 random, halfbakery