Why, when my daughter in kindergarten was putting together an ABC's book, and pasting in pictures of things that began with a certain letter. There were challenges along the way, but all went well until we came to X. I, of course, wanted my daughter to be different and inventive, and break away from the tired X-rays and Xylophones. So I looked in the dictionary and found Xebec. Its picture is below.
An older-style boat, used in the Mediterranean for trade.
But my daughter refused! "But mommy," she said, "That's a BOAT, and that starts with B!"
So off we went on the internet to find a picture of a xylophone.