Here's a list of everything inside the time capsule:

Movies, including Home Alone and Back to the Future on VHS
CDs, including Please Hammer, Don’t Hurt ’Em by MC Hammer and Michael Jackson's Dangerous album
A Nintendo Game Boy
Rollerblades
Reebok Pump sneakers
A jar of Gak, at the request of a Dr. Emmett Brown impersonator, who showed up in a real DeLorean and fake hair
One of Joey Lawrence’s “Whoa! ’92” hats, which he stopped by to present
News reports, including coverage of the AIDS crisis, Desert Storm, and the end of the Soviet Union
Books, including a world atlas, history book, comic book, phone book, the Orlando TV Guide for the week of April 30, 1992, and a copy of the Book of Endangered Species
An issue of Nickelodeon magazine
A Nicktoons t-shirt featuring Ren & Stimpy
A piece of the Berlin Wall
A Barbie doll
Pencils
A skateboard
A baseball
Twinkies
A stick of bubble gum (though no one seems to know which kind)
Photos of things too big (or alive) to fit inside, including bicycles, planes, trains, cars, politicians and celebrities
A videotape, which was a recording of the live ceremony, shot by a girl named Vicky who stood onstage to operate the Kid Cam
The camera recording the tape, which appears to have been unplanned—Mike O’Malley and Joey Lawrence both looked baffled about how to remove the tape from the camera, so the whole setup was tossed in at the last minute