Pacifiers (or pipette tops) are a good option. One advantage is lower pressure than the tubing bladders, and hence, less critical needle adjustment.
I use the high pressure yellow tubing stuff on F2D, etc, but you need a good fine thread needle.
While not quite as durable, pacifiers tolerate a lot more needles.
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With any type of bladder tank, you need to make the compartment big enough so the tank can inflate to its natural size and shape. Otherwise it will be distorted and have "false pressure" at the beginning of the run, then go overlean when it loosens up.