"Don't drink and drive - use the tube! This set of 6 solid shot glasses are presented in their very own Tube. Made in the UK and a licensed London Underground product, these glasses are suitable for all types of spirits. 6 shots with the following messages: 'Not in Service' 'Zone 1' 'Danger 630 volts' 'Hold Tight' 'Mind the Gap' 'Emergency Alarm' - a really great gift." - say e-directory.
You can buy these at the London Transport Museum shop, however, if you want to buy them online in time for Xmas delivery, your last chance to order is today 19th December from this site - e-directory (telephone - 08700 273432) - where they are being sold for £14.99 which is a very good discount over the usual £21.99 price from London Transport.