Let everyone know you love the day after Christmas .... Boxing Day. Boxing Day T-shirts, buttons and other gift items.
Wikipedia defines Boxing Day as "a bank holiday or a public holiday in the United Kingdom, Australia, Canada, New Zealand, Hong Kong, and countries in the Commonwealth of Nations with a mainly Christian population. In South Africa this public holiday is now known as the Day of Goodwill. It is based on the tradition of giving gifts to the less fortunate members of society. Contemporary Boxing Day in many countries is for many a "shopping holiday" associated with post-Christmas sales and early starts to 'January sales'."