Because the only highlight from your usual backyard party is when someone remembers to bring Apples 2 Apples, upgrade your game with one of these three Indian Summer packages from SF's resident hip-hop-powered catering service, which they'll generously allow you to tack on to their standard offerings of BBQ meats and beats:
Slip n' Slide & Inflatable Pool
This Old School-inspired, running-water-required hookup comes with a 35-foot-long Slip 'n Slide and a 12'x6' inflatable pool that they'll fill, yes, with Jell-O, but don't expect Bill Cosby to show up, because he's dead. Seriously, it's right there on Twitt--oh wait. Damn youuuuu, hoaxes!!!
While yes, you still have to go buy the keg (they don't sell booze), they'll do/provide pretty much everything else from moving that metal beast full of suds to and from your ride, to tubbing, tapping, and icing it, plus they'll set up a flip cup/beer pong table, and even act notably impressed when you let them know it's no big deal, but you were social chair of your Cal frat two semesters in a row!!!
Sound System Plus
Add two gigantic 15" subwoofers and a pair of window-shattering loudspeakers to their already sizable sound system if you want to finally "feel that chest-rattling bass", which they're apparently a Master at providing.