Just about all the major soap manufacturers use a mixture of beef and pork tallow (or beef tallow and pork lard, if you want to get persnickety) Ivory Soap's website says it's made of both vegetable...
No - in fact, nowadays, gum doesn't even contain "gum" (chicle). Gum today is made of a specially concocted plastic resin with flavorings added to it. The resin is harmless, of course.