Sniffiz SmellyMatty Snuffle Mat for Dogs The pleasantly puzzling challenge of the Sniffiz SmellyMatty Snuffle Mat for Dogs ($45) has 5 different levels that can slow feed your dog an entire meal. It's helpful for dogs with indigestion, bloating, and other stomach issues related to eating too quickly. Image Source: amazon.com Sniffiz SmellyMatty Snuffle Mat for Dogs $45 from amazon.com Buy Now