I'm another that takes old tubes, and use heat to seal the bottom. Take a hole punch and knock holes in the tube, then take heavy line and tie a strong knot on a treble hook then use a large eye needle to run the line up through the tube and then tie a loop for an eye. Push it down in your dip bait and go after them.
I also use small crappie tubes the same way for bull-heads in my local Fish and Wildlife pond except I use a single hook. Some of the older gents actually called the sheriff and FW when my nephew and I were catching more than they were!!LOL But I was surprised the bull head liked the Sonnys Super sticky!!!
