The 3rd most drunken liquid on the world is beer and therefore we have the BEER token.
During promotion time, everybody may use the BEER tipping function with the with !BEER at any comment to send a freebeer aka Freibier to the Steemian where you comment on. You need to have at least 10 BEER in your virtual fridge.
Keep in mind that BEER is still cheap at the moment and that the Freibier will end at some day.