All through his career, Hergé produced various advertising campaigns featuring his characters. They promoted everything from cars to margarine and washing detergent to cigars. With the international success of Tintin, these campaigns were mostly for international brands, but in the early days, they were mostly world-famous in Belgium.
This ad from the 1930s combines the most Belgian of characters, Brussels street urchin Flupke, with the most Belgian of chocolates, Jacques. Established in 1896 Les Chocolates Jacques were probably best known for creamy filling in all kinds of flavours and their collectable pictures. The brand still exists, but is now part of a global conglomerate.