Bert the Turtle was created in 1951 by the U.S. Federal Civil Defense Administration to teach young children how to prepare for a nuclear blast.
The cute little turtle was designed to make the frightening prospect of nuclear war more bearable.
GIF: youtube/nuclear vault
But surprisingly small things have been shown to reduce damage in a nuclear blast. The military found that white paint reduced damage to structures and began repainting nuclear bombers. A survivor of the Hiroshima bomb reported that wearing two pairs of pants saved her legs from radiation while her torso was severely burned.
So maybe the turtle was on to something, even if this is a very optimistic depiction of what it would look like when civil defense workers came to rescue you after a blast:
No fire, no panic, and the bike is still in working order, eh, Bert?