In a three-dimensional object formed by bending and deforming a sheet-like base material made of a thermoplastic resin at a ridge line, a surface of the base material bent and oriented outward at least at the ridge line is covered with a thermal expansion layer that expands when heated to a thermal deformation temperature of the thermoplastic resin or a higher temperature, and the thermal expansion layer is expanded at the ridge line.

A container for receiving a gift, having an articulating closure feature such that arms extending from the flap mimic a waving or hugging motion of a character or other design depicted on the character. The container includes pleated sides to accommodate different size gifts and may further include a closing tab to securely close the container and a handle for carrying the container.