I've recently been helping a friend find and restore a vintage bar cart so I have barware on the mind lately. This simple Anton Decanter has subdued modern written all over it. While definetly more on the contemporary side than the MCM side I have a feeling it's clean lines would fit in just about anywhere. Designed in the UK, handmade in Poland.
Lekker Home has a whole bunch of equally swoonable glassware and decanters worth looking at too.