: I've found the cheapest way to make float bags is simply to buy
: some wax cloth, the kind used for waterproof tablecloths, and
: simply iron it together.

: Around here you can get the wax cloth for about 2$ per metre, if
: you don't mind a flowery pattern on it... :P

: And they hold well enough, I made a pretty big one and sat on it
: for a couple of hours, and when the air finally went out it was
: the opening that broke, not the ironed parts.

: (I can make a photo guide or something if anyone needs it)

Matthias,
I'm not familiar with "wax cloths." We might call it something different here in the USA. How do you inflate them? A step-by-step guide would be helpful.
Jim