Is there another worm on the market with similar action?

You can look at a needle worm but it�s hard to beat the tattletail.

I've actually used both and admittedly I am a little biased but that little tail simply won't stop moving on the Tattletail no matter what you do. I've thrown it on a shaky head, split shot, c-rig and t-rig and caught them on it each way. Favorite colors for me are Sooner Run and Sooner Magic.

Zoom Magnum Shakey Head worm is my favorite

Big Bite Baits Shaking Squirrel and the Kreit Squirrel Tail have done me well