The following contains spoilers for last night's episode of Legends of Tomorrow, "No Country for Old Dads."
Wally West has had quite a journey since becoming Kid Flash. Since debuting on The Flash in his signature gold costume, he's matured from a hot-headed sidekick into a full-fledged hero of his own, even protecting Central City while his mentor had gone missing. Once Barry was back in the picture, and his girlfriend Jesse Quick broke up with him, Wally found himself traveling the world on a journey of self discovery -- a journey that was upended when Rip Hunter asked him to help save the world.
A few amazing 1992 Tokyo karaoke sessions later, Wally and Rip decided to make their way to the Waverider with the other Legends, finding both a place among other outcasts and a new hobby that certainly sounds familiar if you watched a certain animated superhero show.
At the start of the most recent episode of Legends, Wally and Rip happened to show up on the Waverider shortly before Nate Heywood and Mick Rory had returned from searching for Ray Palmer at a Grateful Dead concert. The two men, dressed in Dead attire, hit a dead end, but Mick casually says that he managed to swipe Jerry Garcia's glasses. He tries them on before the young speedster takes the glasses and chastises him. As it turns out, this is just a thing that the Legends do sometimes -- in Nate's words, they're souvenirs, because they approve of "light to moderate theft".
This, of course, likely sounded familiar to fans of the animated Young Justice. The fan-favorite cartoon's version of Kid Flash (voiced by Jason Spisak) collected souvenirs during his team's missions as well. Throughout the show's first season, the teen speedster acquired an eclectic variety of trinkets, from the mask of a cult member to Monsieur Mallah's beret (which probably had gorilla lice) to even the Helmet of Fate. Every time he found something he deemed worthy, he would cheerfully declare "Souvenir!" Eventually, the number of them increased enough that it had its own room at the Team's headquarters, and when Wally left the hero game, Beast Boy continued the tradition -- at least, until Mount Justice was completely destroyed in a massive explosion.
Legends has treated Wally as a much more fun and playful character than The Flash ever did, so it's only fitting that he would get in on the souvenir action. While saving Ray in 1962 Berlin, he decides to swipe the fragments of the destroyed Fire Totem from the pocket of Damien Dahrk, cockily telling the others thought his thought process was, "Yo, that would make a sick souvenir." And now that he's a full time member of the team, he's sure to collect many more during his time with the Legends. For Young Justice fans, this has the potential to be a great recurring bit that pays tribute to one of the animated series' most fun and beloved characters.
Airing Mondays at 8 p.m. ET/PT on The CW, DC’s Legends of Tomorrow stars Arthur Darvill as Rip Hunter, Dominic Purcell as Mick Rory/Heat Wave, Caity Lotz as Sara Lance/White Canary, Brandon Routh as Ray Palmer/Atom, Maisie Richardson-Sellers as Amaya Jiwe/Vixen, Nick Zano as Nate Heywood/Steel and Keiynan Lonsdale as Wally West/Kid Flash.