The "Where's Waldo?" books have been around since 1987, and the publisher continues to release new ones each year. Waldo is often hard to spot, which is what makes each of the pages so much fun to peruse. Waldo also features in advent calendars, but it seems like one of the designers forgot the memo where all of the items are actually supposed to be difficult to find, not incredibly easy.
Instead of having to search for the snowball, it is just printed right under the writing. At least this person can eat their chocolate without worrying about solving the case of the hidden snowball.