In the segment Pipe Screams, while "Fluffy" is a pretty common name for a cat, it is also the BTS nickname of the creature in the Creepshow (1982) segment, The Crate.
At approx 7mins in during the Pipe Screams segment, a small stuffed toy is shown at the lefthand side of the screen. The toy is a small but exact replica of Key West's infamous "Robert The Doll", right down to holding his stuffed toy lion. Robert is allegedly haunted and was the original basis for the Child's Play (1988) franchise as well as Robert (2015), although neither doll in those franchises looks like the actual doll.
The Grantham Family ashtray can be seen roughly 8mins in on a table inside of Janet's apartment in the segment Pipe Screams.
The Grantham Family ashtray also appears on a desk at the research facility (0:27:47) in the Within The Walls of Madness segment.
At 40:06 in the comic book is an ad for a giant "EYE" Creature in reference to the monster in The Crawling Eye. The Crawling Eye was a remake of The Trollenberg Terror, British TV show from 1956.