Abstract: The disclosed invention is an insulating device to protect frozen confections and is supported by a receptacle, for example an ice cream cone. The device includes a dome portion, a clamp, and a clamp attachment. The dome portion comprises a concave portion that faces the frozen confection held in the receptacle, to which the insulating device is clamped. The clamp attachment attaches the clamp to the dome portion and comprises a ball-and-socket rotatable joint. The clamp holds the cone by attaching near the rim of the cone, and comprises sturdy, adjustable material such as metal. Embodiments contemplate varying the dome portion size, malleability of the clamp, or both from device to device, to accommodate various cone sizes and various volumes of frozen confection.