Purchase history data is used to determine items that were purchased by a first user account. The user selects a subset of the items for inclusion in a user interface and provides access to the user interface to other user accounts. Characteristics of the items are determined, based on the purchase history data or based on item data from seller devices, and are included in the user interface. Images of items in the user interface may be provided with a background color that is complementary to the color of the depicted item to provide the user interface with a uniform appearance. The user interface may include links that enable users to initiate a purchase or navigate to a website associated with an item or seller. The first user account may be notified if another user account purchases an item using the user interface or after viewing the user interface.