@@TheMasterNova These coins are only used to buy these special items from this guy who stays in the churches. I recommend saving up to buy the first item, as it frees up another accessory slot (you are still at the beginning of the game, but you will get many accessories along the way, such as items that increase defense, attack, work speed, and the shirts that helps to deal with heat and cold, etc.) You can get dog coins by searching scrap, killing or capturing mimogs, killing some thugs, etc... but it's not easy to find