Chipp’d produces key chains and bracelets (from $44.99; bulk pricing is available) that include QR codes that link to a custom microsite. Organizers can load the sites with agendas, audio, videos, photos, and other event information. They can also continue to add new content to keep guests engaged throughout the year. The key chains and bracelets come in a variety of colors, shapes, and materials and can be engraved.