Everyone loves hiding to Comic-Con International in San Diego for the exclusives you can only find at the show. But while it's always fun to scour the con floor for that elusive and expensive piece of fandom, perhaps the most popular collectibles are the ones every attendee gets, free of charge -- aside from the cost of admission, that is.

Oversized bags emblazoned with various Warner Bros. and DC Entertainment properties have been a staple at SDCC for the past eight years, and they rarely fail to disappoint fans who will happily trade or even pay for the specific bag they want, if they aren't lucky enough to land it at check-in. As in years past, this summer's checklist contains a healthy mix of CW mainstays in Arrow, The Flash and Supernatural, along with perennial favorite Teen Titans Go! Superman joins the line-up in promotion of Brian Michael Bendis' upcoming run on the character, along with Stephen King's Castle Rock and what's likely to be one of the most sought after bags, Young Justice: Outsiders.

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In addition to the bags, attendees will also be able to collect pins featuring DC Entertainment heroes and villains, from across the spectrum of comics, television and movies. For the second year in a row, FanSets is creating a series of 12 pins featuring Harley Quinn, Joker, Batman, Wonder Woman and other DC characters.

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Check out the official press release, which includes information about all 18 bags and 12 pins, along with the Warner Bros-sponsored photo ops, autograph signings and more.

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Warner Bros. and Comic-Con® have teamed up once again, with the Studio to provide the official bags of SDCC for the ninth year in a row. For 2018, Warner Bros. brings fans 18 different bag designs featuring fan-favorite returning series plus the highly anticipated upcoming Castle Rock and Chilling Adventures of Sabrina, as well as four feature films and two bags dedicated to DC Entertainment. And for the second year in a row, each bag will come with a unique collector’s pin, with 12 DC character designs for 2018.

Fans donning their cool carriers at the convention center can also make their way to the Warner Bros. booth on the convention floor (#4545), which boasts interactive elements perfect for photo-ops, including the wings of the fallen angel Lucifer as a nod of appreciation to the show’s passionate fans (#LuciferSaved); the mouth of a Megalodon shark to stand inside; a life-sized rabbit inspired by San Diego’s historic Rabbitville district; and LEGO® gaming kiosks for everyone’s inner child.

Fans can grab their bags when checking in at the show. The have-to-have-it hold-all is the perfect size for all their Con swag.

HOLD IT! (THE BAGS)

The SDCC bags, produced for the studio by I.D. Me Promotions, will feature the following series and movies:

Warner Bros. Television series Arrow, Black Lightning, DC’s Legends of Tomorrow, The Flash, Krypton, Supergirl, Supernatural, and the highly anticipated upcoming Chilling Adventures of Sabrina for Netflix and Castle Rock for Hulu

Warner Bros. Animation’s DC Super Hero Girls and Young Justice: Outsiders, along with Warner Bros. Animation/Blue Ribbon Content’s Constantine: City of Demons

Upcoming feature films include Aquaman, Fantastic Beasts: The Crimes of Grindelwald, The Meg and Teen Titans GO! to the Movies.

Additionally, DC Entertainment will be featured on two bags, with one bag celebrating 80 years of Superman in DC’s comic pages and another devoted to the upcoming DC UNIVERSE digital service.

DARE TO FLAIR! (THE PINS)

The exclusive collector’s pins are manufactured by FanSets for the second year in a row, and they will feature both DC Super Heroes and Super-Villains.

This year’s pins from both film and television include Arrow, Aquaman, Batman, Black Lightning, Catwoman, The Flash, Harley Quinn, Joker, Martian Manhunter, Nightwing, Superman and Wonder Woman.

SNAP TO IT! (THE BOOTH)

Fans can get a larger-than life experience at the Warner Bros. booth (#4545), which provides a fun, immersive environment inspired by celebrated series, upcoming films and more. Warner Bros. autograph signings will also take place in the booth.

Lucifer fans will have a heavenly — and devilish — time with life-sized, photo-friendly wings flown in from the City of Angels as a divine treat for the devoted fans who helped keep Lucifer alive. #LuciferSaved

It’s game time, as parents and kids alike can enjoy LEGO® gaming kiosks.

Brave fans can step inside the virtual mouth of the ferocious megalodon ahead of the premiere of The Meg, the upcoming action-horror film featuring the 75-foot-long prehistoric shark that’s been missing for 2.5 million years.

Fans having a good hare day can snap a picture with Warner Bros. Television’s “Hop, Hop, and Away!” rabbit statue, which is part of the Rabbitville public art installation which combines the history of San Diego’s Rabbitville district (now the Gaslamp Quarter) with some of the most recognizable heroes from the DC Universe.

Con-goers who hope to participate in autograph signings must visit Comic-Con.org/CCI to submit their interest via the Exclusive Signings Portal. WBTVG follows Comic-Con’s ticket drawing/wristband distribution procedure.