A transaction product includes an electrical circuit, a housing, and an account identifier. The electrical circuit includes a plurality of lights The housing substantially encloses the electrical circuit including the plurality of lights. The housing defines a plurality of light cavities separated from one another and substantially enclosed within the housing, and each of the plurality of lights is positioned in a different one of the plurality of light cavities. The account identifier is coupled to the housing and links the transaction product to a financial account having an associated monetary value available toward a price of a purchase, wherein the account identifier is machine readable. Other products, cards, assemblies and methods of using such cards, products and assemblies are also disclosed.