Scott Fink shares another pattern.  He saw Jack Dennis and Kelly Galloup tying cripple imitations.  One really looked good.  Kelly Galloup's pattern imitates a spent mayfly that is lying on the water on its side.  The curved hook shank and wing tied sideways on the hook shank produce the desired effect.  The hackle trimmed on the underside of the hook causes the fly to float in the surface film like a natural spent bug.  It can be tied in any color and size to match the targeted mayfly.

Hook: Light wire dry-fly style
Thread: Fine, to match color of fly
Tail: Several hackle fibers - color to match
Body: Your favorite dubbing - color to match
Wing: Crinkled Z-Ion - color to match
Thorax: Same as body

1. Carefully bend the hook, by thirds, to the right as shown.

2. Tie a hackle fiber tail the same length as the hook shank.  Then dub a tapered body about 2/3 of the way up the hook shank.

3. Tie in the crinkled Z-Ion wing diagonally to the right of the hook shank.  This will cause it to lie flat on the water instead of riding upright.

4. Tie in the hackle right behind the wing and secure.  Dub a wrap of thorax behind the wing and another one or two in front of the wing and secure.  Wind the hackle one turn behind the wing and three turns in front.  Tie off and secure.  Make a small head, whip finish, and cement.

5. Trim the hackle flush with the bottom of the fly.