Bob's Burgers

Bob is reluctantly driving Gene to his first date (with a girl he does not even "like like") and he has his car keys out.  Bob has a burger keychain, quite appropriate. 
 From Season 3 episode 8 - The Unbearable Like-Likeness of Gene


Bob wants teach Tina how to drive and is giving her his keys.  His burger keychain can be clearly seen.
From Season 3 episode 7 - Tina-Rannosaurus Wrecks

Coneheads

Beldar Conehead, played by Dan Ackroyd, is a taxi driver when the INS lead by Michael McKean's character, comes after him.  They find his keychain which has the symbol for his planet, Remulak on it. 

Family Guy Season 12 Episode 17 "The Most Interesting Man in the World"

Peter is traveling the country to become intelligent and cultured.  He rents a car with the radio stuck on NPR and then returns the keys and keychain, a plain black fob, to the car rental agency. 

Keychain - Rory Gallagher

The hard rock song Keychain, from Rory Gallagher's eighth album Top Priority released in 1979

Deadbeat

Tyler Labine's character Kevin Pacalioglu is a medium who helps ghosts with their unfinished business.  His friend sets him up in a newstand in order to get more customers with ghost problems.  There are several keychain displays at the newstand that can be seen throughout the series.