adventuress, argonaut, conquistador, cowboy, daredevil, diver, frogman, gambler, hothead, hotspur, lunatic, madcap, mercenary, mountaineer, navigator, plunger, potholer, speculator, spelaeologist, speleologist, spelunker, swashbuckler.
noun: writing implement consisting of a colored stick of composition wax used for writing and drawing.
Unscramble crayon