I don't think that there is any specific industry. Realtors can use them as "welcome home" gifts, so can contractors or any business involved in remodeling. Salons that offer tea or other hot beverages before or after services.
Mugs have to be one of the most popular promotional products. Just think of a specific way that a potential customer would use a product and explain the benefits of that product.
Mugs have to be one of the most popular promotional products. Just think of a specific way that a potential customer would use a product and explain the benefits of that product.