The Wombat logo was the use of advertisement before The Merch came onto the scene. It was seen on various objects such as t-shirts and flags.
Tycho Brahe originally owned the very first Wombat merchandise. He had it on a flag, which he waved during a sports game. Soon, Kara tended to appear with the Wombat logo on her shirt or some other piece of clothing.
Some new readers believe that the Wombat logo is actually a Bear logo. However, it is often stated to them that it is not a bear, but a wombat, although people do not understand this.