Nordstrom offers the Mr. Christmas Disney's Frozen Olaf Music Box and Earrings in Blue for $17.47 with free shipping. That's tied with last week's mention and the lowest total price we could find by $2, although most stores charge $30 or more. It features a wind-up mechanism that plays a snippet from "Do You Want to Build a Snowman?" and includes three pairs of post-back earrings.
Also available for the same price is the Mr. Christmas Disney's Frozen Music Box & Necklace in Pink. It features a wind-up mechanism that plays a snippet from "Let it Go" and includes a 16" pendant.