Here is a great little bass fly from Ryan at Dakota Anglers. The only modification I made to his bug was adding the rubber legs. This fly has a lot going on for it: (1)It is an easy tie. I have a bunch of friends who fish and not many who tie so handing over a fly that take 5-10 minutes to tie can be tough to swallow. (2)It is light. Most guys who fish for bass on the fly a lot would recommend an 8, 9 or even 10 weight. It isn't because bass are particularly strong fighters but a lot of the flies you end up fishing with are big suckers and need a big rod to "cast", and I use "cast" in more of a lob/chuck kind of way. You can cast this fly easily on a 5 or 6 weight. (3)Despite being light the tungsten cone at the front really allows the fly to plummet between strips and this is when most bass hit the fly.
Hook: TMC 8089 #6 or 10 (I used a Daiichi but I was just finishing off a random stash)
Thread: Mono (to match body)
Cone: Large Black Tungsten Cone
Body and Tail: Estaz Chenille or similar
Legs: Sili Legs