Vessel linework

[Mauro]

The straw wrapping is there to prevent the glass bottles in a crate from knocking together and breaking.

Then you'd have a disaster (Fiasko) on your hands.

Hehe, yeah, it's a nice idea. 

The main function of the straw wrapping is to give the flask a flat base so it can stand upright. Of course it also gives a degree of protection to the glass bottle, expecially to the base.