Anyone who is worth their organized salt would definitely have a keychain. After all, it makes plenty of sense to have a cluster of important keys in one place, instead of leaving them all over the place, right? Perhaps you might want to inject some humor and color in your life with the $4.49 Burping Burger Keychain that, as its name suggests, will let out a loud and long “BURRRRP!” whenever you press the burger. It is not hot, and neither is it juicy, but it gets the job done – while eliciting some smiles and laughs perhaps from your table. As part of the devious scheme to have you purchase it repeatedly, the Burping Burger Keychain will not come with replaceable batteries.