British design firm Decode will be presenting these - their 'Vessel' series of lighting at 100% Design during September's London Design Festival. 

The set consists of three mouth blown forms cut across individual angles; each looking to celebrate the bulb from a different perspective.

The outer glass wall is pierced by a fluid machined aluminium form which holds the bulb in the centre of the piecea and each one is entirely unique as they are all mouth blown to eye - that means no mould at all - by master craftsman Stuart Hearn.

There are two pendants and one table version which relates to the traditional type of 'impossible bottle'.

Rather nice.