Bags of Snow. Plastic Bags...

Fake snow in sacks. Delivered all the way from Germany to Glasgow for
use on a shoot in the Scottish Borders area.

Stored temporarily at Visual Impact's building which they share with a
special effects company. I'd called in to order a part for my radio
mic system and found the place full of bags marked 'Bright White'.
Presumably they do different shades of snow. Yellow?