With a tissue paper sail, this boat is kitchen sink-worthy (as long as the wind remembers not to blow too hard).
Crack the egg in half and gently break off pieces to get a boat shape. Paint the shell.
When the shell is dry, gently glue a 1-inch ball of clay into the bottom of the boat. Use a toothpick to make a hole in the center of the clay.
For the sail, cut a rectangle out of tissue paper, about 4 by 3 inches . Apply glue to one side, lay the toothpick in the center and fold paper in half to make a triangle. Dab glue onto the end of the toothpick mast and insert it into the clay.