Star Trek Lower Decks: Every Easter Egg & Hidden Reference From 'Envoys'

As Boimler has his uncomfortable encounter with the Taxor (a new alien species), he and Mariner stop in front of a shop selling Klingon disruptors from across the Star Trek franchise.

There are disruptor pistols from Star Trek: The Original Series, the motion pictures, and Star Trek: The Next Generation. There are even Klingon disruptor pistols and rifles from the Kelvin Timeline film Star Trek Into Darkness, despite that movie taking place in a totally different quantum reality...

The shop next to the disruptor vendor has several Klingon uniforms on display, the very same costumes that debuted in Star Trek: The Motion Picture and went on to be the outfit of choice for most Klingons appearing in the various movies and spin-offs for decades.