WMG / Flush Force

Flush Force is in the same universe as The Grossery Gang.

Even though they are both by two separate toy companies, Grosseries are still seen in the background of one of the commercials. While this simply could be prop reusing for set decoration, the fact it's specifically the characters, paired with how vast the Grosseries' side of the world is, makes it seem like Flushville isn't too far from Cheap Town.