Clouser
Bob Clouser developed this fly for small mouth bass, but seatrout and redfish readily take it.  This fly has probably caught more different species around the world than any other fly.  It's easy to tie and cast. It can be tied in a variety of patterns to seduce redfish, sheepshead, black drum, flounder, and entice the strike of a trophy spotted seatrout.
Clouser Tying Video David Winters-McDonald