2760 24th St, btwn York and Hampshire; The Mission; 415.920.1978
The formula for adulting up most childhood pleasures is "just add alcohol" -- hence the spiked milkshake. And sex. For matured kid-fodder you can drive after enjoying, hit Dynamo Donut, open today.
Beyond the kiosk's a large kitchen where (permits permitting) the owners plan to open a full bakery; there's also a back patio, which could be turned into an adulted up playground by just adding monkey bars. And alcohol.