
Topman, the British fashion brand that has a store on Michigan Avenue, brought back its "Live Screen Printing" activation. Guests could customize T-shirts or tote bags with a variety of prints.

As in previous years—and as at other music festivals—guests waited in long lines to receive the custom tote bags and T-shirts.

Ray-Ban and Vice magazine teamed up on an another custom T-shirt activation—but guests could bypass the line by participating in a musical activity. Anyone who stepped into a live recording booth and sang along to Aloe Blacc's "I Need a Dollar" got a pass to step right up to the station.

The T-shirts all said "Speak the Truth," and guests could customize the statements that were printed below. One guest elected to have printed: "I still have stuffed animals," while another chose, "I am in the fast lane following my dreams."

Several brands used games to engage Pitchfork-goers. Coffee brand Café Bustelo, for example, had a prize wheel at its Café Bustelo Experience. Depending on the section the wheel landed on, guests could take home branded sunglasses, fanny packs, or other goods. The activation was produced by BMF Media Group.

Dark Horse Wine also had a prize wheel at its tent in the V.I.P. area. Guests could win prizes including an entire case of wine.

On the festival's main grounds, the wine brand also had a tent where guests could apply silvery, temporary tattoos featuring Dark Horse's logo.

Local beer company Goose Island made custom periscopes, set back from the main stages, that let guests peer at the festival crowds near the stages.

Whole Foods hosted a miniature market selling fruits and other snacks on festival grounds. There was also a station with complimentary amenities such as sunscreen, hair ties and bobby pins, and scented sprays with labels such as "Mosh Pit Mint." A sign near the station read: "Refresh yourself before you wreck yourself."

Several brands created interactive photo opportunities. At one such activation, guests stuck their heads into a billboard advertising Lifeway Kefir. Nearby, the brand doled out free samples of its vanilla and green-tea-raspberry frozen Kefir bars.

Whole Foods' photo op let guests pose in bright frames that appeared to grow out of a garden box.

Who knew carpet samples could come in handy at a music festival? Chicago-based carpet company Flor handed out some 5,000 squares of carpet so that guests could make their own carpeted seating areas on the grass. When the weather turned stormy on Saturday, guests used the carpets to cover muddy spots on festival grounds.Â

Off site but near festival grounds, Soho House Chicago teamed up with food website and mobile app the Infatuation to host an Ice Cream Social for festivalgoers on Friday. The event included a complimentary D.I.Y. sundae bar, where toppings inspired by the hotel's eateries included melon, basil, and bits of apple pie.

Outside at a mini market, guests could design their own parasols to take along to the festival on the hot, sunny day.

During a talk by Chris Milk, C.E.O. of virtual reality company Vrse, a Google Cardboard viewer and headphones sat on every chair in the theater. Attendees were invited to download his latest virtual reality film and watch it together as he spoke.

Each year organizers create a variety of lounges where attendees can watch a simulcast of speakers. New this year was a ball pit filled with beanbag chairs and beach balls.

Sponsor Delta Air Lines created an immersive installation to introduce its new collaborative research center dubbed the Hangar. Inside the space, 6,000 LED lights simulated a star-filled sky. Attendees could climb throughout the dream-like environment and then submit innovative ideas for Delta to explore.

TED invites baristas from around the world to set up coffee stations at the conference. In a workshop hosted by the Specialty Coffee Association of America, attendees also learned about “coffee cupping,” the practice of observing the taste and aroma of brewed coffee.

Sponsor Bluescape demonstrated its visual collaborative software by erecting several multi-touch video walls around the conference. On the walls, attendees could read about conference activities and speaker content and bios, watch live streams of presentations, and contribute comments. Attendees could also access Bluescape using a Web browser.

Vancouver architect and past TED speaker Michael Green worked with local design students to create two 16- by 30-foot “warming huts” where attendees could gather outside the convention center. Following the conference, the huts will be permanently installed in one of British Columbia’s outdoor recreation sites so they can be used by climbers, skiers, and outdoor enthusiasts.

Steelcase, a TED partner for more than 20 years, provided a variety of seating options throughout the convention center. The company’s personal cubicles provided a semiprivate area where attendees could watch the simulcast and do work.

To encourage attendees to mingle, organizers provided blankets and picnic baskets filled with food for six and invited them to find others to share it.

Sponsor Target provided illustrators who created unique pieces of art based on guests’ descriptions of their hopes and dreams.

Heart-shaped cookies were an appropriate dessert at a reception for the 21 TED Fellows on Valentine’s Day, the day before the conference opened.

Sponsor Lands’ End created a lounge where attendees could learn about its Sport Collection. The company also provided large totes that served as the conference gift bag.