A trading card costume device is provided. The device is comprised of a wearable costume device designed to resemble a three-dimensional, living trading card, offering customizable features that mimic various trading card themes, such as sports, fantasy, or game cards, to enhance personal expression and engagement at themed events. The device comprises a front member with an opening for the wearer's face, evoking the image area of a trading card, and may feature thematic indicia like player names or holographic designs for authenticity. A matching rear member includes thematic and visually cohesive indicia, with typical card-back details such as statistics or descriptions. Structural integrity is maintained by supports, and the device is secured with adjustable, padded shoulder straps for comfort and fit. A method of use includes donning the costume and adjusting the straps for stability and ease of wear.

A system for controlling costumed character interaction includes a character costume configured to be worn by a user. The character costume includes an electromagnet integrated into the character costume. The system also includes a stage prop including a magnetic piece integrated into the stage prop. The system further includes a control interface coupled to the electromagnet. The control interface is configured, via a control signal, to activate and to deactivate the electromagnet to control interaction between the character costume and the stage prop via magnetic interaction between the electromagnet and the magnetic piece.

A wearable inflatable costume includes an inflatable costume main body and a strap assembly. The inflatable costume main body is provided with a plurality of side walls and an inflation chamber. The inflation chamber is formed by encircling the plurality of side walls of the inflatable costume main body. The strap assembly is connected to the inflatable costume main body, and a wearing space is formed by being surrounded between the strap assembly and the inflatable costume main body. A user can wear the inflatable consume main body through the wearing space formed between the strap assembly and the inflatable costume main body and can carry the inflatable costume main body on the shoulders. Compared with an ordinary inflatable costume that cannot be worn by a user only when the user enters the inflatable costume, the wearable inflatable costume is not sweltering and has high wearing comfort.