Helgoland Airlines

A standard plain-white Kard-o-Seal Beutel, made a lot more interesting by a lively sticker. Distressingly upside-down in the picture to the left because of this site's strict quality-control rules: the opening must appear on the left. 

No, I don't know if the sticker comes as standard with this carrier's bags, or whether the user has to apply it him/herself.

HeliCusco

From the firm that takes you "de Cusco a Machu Picchu en solo 25 minutos".

Thanks to Matthias Koch. (2003)

Helikopter Service

Unimaginative name for this firm: but it's currently my only helicopter bag. Instructions in English and Norwegian to place the bag on the floor after use -- ie, don't drop it out of the open door.

The logo looks suspiciously like Hapag Lloyd's.

Helios Airways

An unforgettable bag replete with medallions of the sun-god looking rather airsick.