The "dancing bear" is an iconic piece of art created for the band The Grateful Dead. It has been used on endless amounts of Dead merch and more since the 1970s.
NMR is a high-quality American-made brand that makes durable ceramic mugs embedded with scratch-resistant logos. They work well for hot and cold beverages. The mugs are 100% dishwasher and microwave safe, even the logos are produced to not fade in high heat.