See if you can track down some Grandma's Weapons Grade Ginger Beer. Made in Cornwall, apparently available in a few pubs down there. I had some last week at the Hole in the Wall, Southsea, with Clare un Vern of this parish.
Tastes like ginger beer, smells like ginger beer, looks like ginger beer. But at 5.5% ABV has a significant effect on your ability to walk, talk or cycle. Brilliant stuff!