Inex Adria Aviopromet

This clumsily named airline has a barfbag made of waxed blotting paper.

Inex Adria Aviopromet (white)

Is that a Comet or a Caravelle in the gunner's sight?

Interbrasil

"For your comfort in case of sickness. Pull strings to close." Unclear how doing this is supposed to relieve your nausea.

Same as the bag from TransBrasil (which owns InterBrasil), but minus the logo.

Inter European

This bag has the fill levels marked in red and yellow. Chunder a little to reach the two lower sets of lines above and below the logotype. Chunder a lot (or pass it along your row for others to fill up) to reach the top line.

Interflug

40 x 15 cm: Interflug's food may not be very good, but there must be plenty of it.

Interflug (bar on reverse)

Goodness knows what the red bar on the back of this bag is supposed to be. A "cut bag here" mark for the bagmaker?

Intersky

I really must start a list of airlines that provide plain white bags. Maybe it will shame them into offering something slightly more informative to the travelling public.