alternative chest seal?

[Wilco]

Is there in alternative chest seal to the asherman or Bolin?

I remember in my EMT class and WEMT class, the even told us heavy duty plastic wrap with tape would do in a pinch.

I'm looking for something that is more compact and even less expensive than the asherman and bolin for 3rd, 4th and 5th kits (third and fourth car, plane flights, etc)