Isle of Wight Studio Glass used to use blown shards to create the Seascape and Landscape pieces.
A gather was suitably coloured (in this case, with canes of various colours laid out on the marver to create stripes when gathered) then blown into a large shape, cooled and broken to make irregularly shaped shards, which were then picked up from the marver themselves, onto another gather.
That is how it's done and would have been, I presume, at Monart. There's a white lampshade covered in coloured shards hidden away in the vaults of Perth Museum.
