My friend and I like the shaky head technique, and want to try it with more than just a few worms that float (trickworm powershake etc). My buddy said that he heard people use hypodermic needles to inject a bubble into soft plastic to get one end to float better, so you can stand up a lure like the tiki stick and use it shaky style... They use a lighter or glue to seal the tiny hole.

Anyone tried this at all?

yup, you can use a worm blower too. Or theres always the foam earplugs, cut them smaller or use a whole one just need to run something threw it to make a hole for the line.

You can get little hard foam floats from Cabela's (can't remember what they're called) but they are about the size of a Contact Cold Capsule with a hole through the center.  The foam earplugs sound like a good idea too.  

At my store, we have a product called Carolina Floaters.  It's basically a kit of foam bullet weights and misc. crig tackle.  Never used it, might give it a try.

you will need to peg them, even with that they dont float much. unpegged they will float up in the middle of your leader on a carolina rig.... still leaving your worm and hook on the bottom.

any worm can be custom poured to float. They can be poured to stand up on end. You could make a Senko copy with just a small tail section that floated or any othe worm. You would probably have to order a bunch but I bet if you contacted some guys who do custom handpours they could easily do it for you.

Brent be careful with those bubbles. Wear a mask!

Hey Guys, ALL SOFT PLASTICS FLOAT what sinks them is excessive use of salt. The more salt a plastic bait contains, the faster it will sink. Then it will just lay flat on the bottom like a sunken brick. I pour custom baits and I use very little salt and my baits float great. On a shaky head my trick worm will out fish ZOOM 5 to 1 because the tail of my baits float. Lots of salt also makes that injection plastic even harder and kills what little action the bait has. Handpours are much softer and look more "Alive" in the water.

All the big plastic manufactures have gone "SALT CRAZY" and killed the action of thier baits. I'm about to add a line of special "TAIL TIPPER" colors with a special additive to get the tail to stand up even higher.

Stike King's 3X baits float real well.  Also the carolina floaters are pretty cool.

For those who pour their own lures, try adding some styro-foam into the worm. Not only does the excess salt cause it to sink but also the hook will sink it too.