I think a cool nickname for Madlyn would be Maddie, or you could even use Lyn as your nickname. Maddie is a more casual nickname while Lyn is a little more formal, so it depends on what type of nickname you want to have.
Madlyn L. Hanes was born in 1948.
Madlyn Rhue's birth name is Madeline Solomon.
Madlyn-Ann C. Woolwich was born in 1937.
Madlyn Rhue was born on October 3, 1935, in Washington, District of Columbia, USA.
Leo the cool lion that's cool
its not
The nickname of "The personification of cool" was given to James Dean.
cool man
skywalker
Fifi
court
brantie