Active accounts on EVE Online received a six-pack of Quafe Zero cola today to celebrate the eighth birthday of the game. The consumable has booster-like properties with no negative side effects. (Drug-like boosters, illegal in high security space, I believe, all have negative after effects of some kind.) The Quafe Zero drink is a consumable that gives a 5% speed boost and a 5% increase in scanning ability for the user. Not bad for a freebie.
For full details, see the dev blog entry.