Although one may have seen a commercial for the "Rick and Morty" scavenger hunt known as "Wormageddon" on Adult Swim, it seems like there is a better description of the contest over at Rick and Morty's website. It turns out that the rules of the scavenger hunt are relatively simple, and the only real notes are the standard issue clause that participants must be over the age of 18. If one is considered an adult, they can mosey on over to the "Rick and Morty" website, which gives clues to the locations of nine sculptures of Rick's head, though it is important to realize that one has already been found.
However, that means that there are eight sculptures left. If one is able to ascertain the location of one by analyzing the clues, they may pursue it with the focus of an individual attempting to break the Central Finite Curve. The details of the scavenger hunt clarify that the sculptures are located in at least seven different countries, but these do not include places like Russia, North Korea, Ukraine, Venezuela, Iran, Syria, and Cuba. That means if you live anywhere else, there may be a chance that a Rick sculpture is hidden somewhere in your country. The rules also specify that the locations of the sculptures may be exceptionally remote and only available to visit during specific hours, and they might require significant physical stamina to reach.