Her first six designs portrayed scenes involving children , animals and small green elves in green suits -- these were called ' Boo Boos ' .
In 1926 Shelley introduced a second well known illustrator -- Mabel Lucie Attwell .
Shelley 's first six designs portrayed scenes involving children , animals and small green elves in green suits -- these were called ' Boo Boos ' .
In 1926 Shelley introduced a second well known illustrator -- Mabel Lucie Attwell .