The technology described herein allows a sender to initiate generation of a collaborative asset, which may be a video generated by merging videos provided by a group of users. The technology can facilitate the generation and collection of digital assets, such as video, images, and audio recordings from a group of users designed by the sender. The collaborative asset may be associated with a tangible object using a unique identifier located on the tangible object. The collaborative asset may be stored in computer memory on a user-experience server and associated with the unique identifier. When the unique identifier is provided to the user-experience server a second time, the collaborative asset can be retrieved and output to the computing device that provided the unique identifier. Thus, a user can initiate generation of a collaborative asset.