iv seen those mighty bites on tv a few times.... whats the smallest size they come in?

vertical jigging a crappie magnet.

If they are in the shallows I use a flyrod and use a varity of foam bodied offerings. One of my goto's is a green foam spyder with white rubber legs. A fellow I used to fish with used a heavy Hopkins jig in deeper water. He did quite well that way.

Early ice out small ice jigs size 10 -12 tiny Ratso tails fished clean(no bait)I've caught some real hogs out of Pymy on 1/8 oz. blade baits as well as trolling with Hot and tots for Eyes in May and June.

Has anyone ever used Tony Scott T-Bone jigs?

nope

On the ice;
I prefer a medium fathead hooked with a small treble under the dorsal hanging from a deadstick. (small splitshot about 12" up)

In the spring;
I like a medium fathead lip hooked with a gold aberdeen hook at the appropriate depth under a slip float. (again, with a small split shot)

In the summer and into fall (if I can find time to fish them in the fall);
I like to either troll hot & tots for them or work a Charlie Brewer Crappie Slider in the brush.

Charlie Brewer Crappie Slider in the brush.

What is this?

Google...Charlie Brewer ect. tells ya all ya want to know.

Lil' Hustler micro tubes (1") in glitter smoke, I also like micro spoons size small in green.