I came across a really cool measuring cup in the latest edition of the
Diffords Cocktail Guide. Jamie Stephenson (a bartender from Manchester,
England) includes it in his bartenders toolkit.
It is the Oxo Measuring Glass. I've seen it on www.amazon.com and also on
www.oxo.com.
For those peeps in London, you can get it from the basement in Selfridges.
Its well worth a look though...its the most accurate thing I've come across!
Cheers,
Lefti