1. A system, comprising: a memory that stores computer-executable instructions; and a processor configured to access the memory, the processor configured to access the memory and execute the computer-executable instructions to collectively at least: provide a website that provides an electronic marketplace; receive, via the website that provides the electronic marketplace, an order from a user device operated by a first user, the order including an item identifier for an item offered by the electronic marketplace and a desired quantity; receive a redemption parameter from the first user; charge the first user based at least in part on a cost of the item and the desired quantity; at least in response to a bill sent to the first user, encumber a number of the items in an inventory of the electronic marketplace based at least in part on the desired quantity; identify that a second user has accessed the website; transmit a security key to the second user based at least in part on the identified access; receive a redemption request for the item and the security key from the second user; validate the redemption request based at least in part on the redemption parameter and the security key; reduce a quantity of the items available for redemption based at least in part on the validating of the redemption request; and initiate delivery of one of the encumbered items to the second user.