At the end of Fear The Walking Dead's latest episode 'The Little Prince' Strand and Charlie show up to save their stranded counterparts in a hot air balloon shaped like a beer bottle.
So I looked into it and yes, there are hot air balloons shaped like beer bottles (and liquor bottles and beer cans) but they all have one thing in common: these little flaps that hang down from the base where the hot air is pumped into the balloon itself.
The "hot air balloon" in Fear was obviously a fake, and this is the dead giveaway. As far as I can tell, the bottom of the 'bottle' is flat, with no perceptible opening. It's clearly just a beer bottle inflatable like you might see at a music festival or fair that the show's creators decided would look good enough.