I get mine from wally-world. I use the 2" tubes and fill them with the bait pump. I use a 1/32 jig that I make with a number 4 hook.
It costs 99 cents for a package of 8 and each one lasts about 10 fish. Although I had one last through 29 fish the other day. It looked like it was beat like a red-headed-step-child. :D
D