Donatello (sometimes shortened to Don or Donnie), a fictional character, is one of the Teenage Mutant Ninja Turtles (TMNT). His bandana is typically portrayed as purple, his favorite color (although originally all four Turtles had red bandanas) and his weapon is a bo (quarterstaff), which he sometimes uses as a tool or a walking stick. Donatello is the whiz kid of the TMNT, being adept with machines, though other traits of his personality vary depending on the exact media in question, while lacking in strength, he makes up for it with quick thinking. He is named after Donatello, the Renaissance sculptor.