One of our favorite Sculpin patterns for low flows, super fast to tie, gets onto the bottom and gets eaten. Even easier to tie with the official Flymen Fish-Skull Skulpin Bunny kits.
Fish these on either a slow sinking or intermediate fly line or short sink tip (think Rio Streamer Tip with a 10′ type 6 sink tip) to make sure you plant this fly down on the gravel or among broken rock. Short darty strips with pauses imitates the sculpin movement along the bottom. That upward riding hook point is a bonus here.