From Defense Media Network:

Tinkertoy, Scooter, Bantam Bomber, Mighty Midget, Mighty Mite, Heinemann’s Hot Rod, and other affectionate names were given to the A-4 Skyhawk, which first flew on June 22, 1954, and in fact the Douglas Aircraft Company’s Edward H. Heinemann had the design so right that Skyhawks are still in service today.