Offspring the Third desperately wanted a Christmas-themed T-shirt to wear to school today. He brought down a white shirt and proposed that a Santa hat be generated upon it. He suggested the use of permanent markers (decoration of one's t-shirts with markers is a common occurrence in the household). Herself smelled potential disaster in the use of permanent markers (one mistake would no doubt cause the implosion of the planet); fortunately, there was a plethora of felt available. And lo and behold, a T-shirt was made.