In The Mask, the titular artifact turns Stanley Ipkiss into a human cartoon. Thus, at the climax, he is able to neutralize a bomb by swallowing it and letting it explode inside him. The only side effects to this are comical distension as it explodes, followed by a fiery belch afterward.
In the animated series, a villain wants to blow up Edge City with a nuclear missile. The Mask covers said missile with bread, sauce and salad, and stands on the place it would hit the ground with his mouth open. Although this time the bomb-eating gets him charred and smoked.
Mask: [turning to the viewers] That's right folks. I'M GONNA EAT IT!
Bill Murray's character in Osmosis Jones contracts a lethal virus by eating a hard-boiled egg he'd dropped on the ground near the monkey cage at a zoo. He arm-wrestles the egg away from a grabby monkey, then heedlessly pops it into his mouth.
Link from Encino Man will eat anything he can get his hands on. Some of the things he eats are actually food (salsa, butter, Hot Pockets, candy bars, etc.), and some are obviously not (dog food, bath beads, formaldehyde-preserved frogs, and so on). The one and only thing he ever ate that he reacted negatively to was the salsa, because it was hot and he drank an entire bowl of it. He got over it about ten seconds later.
In Return to Oz, the Nome King turns into a giant rock monster and tries to eat the Gump (which is made of a Gump's head attached to a sofa). They save the head, but he does eat the sofa. He later tries to eat Jack (who is made of sticks, though he does have a pumpkin for a head). It is likely he would have tried to eat the Scarecrow as well if Billina had not laid an egg that fell down the Nome King's throat and killed him.
The dog in Snatch eats a shoe, a rubber chew toy, and an 86 karat diamond...which has actually lost a couple of karats by the time it comes out of his digestive tract.
Transformers: The Movie (the animated one from the 1980's) has an interesting example in Unicron, a massive robot the size and approximate shape of a large planet, that eats, well, planets! He comes into this category because planets typically tend to have lots of things on them, which he gobbles up along with the rocks themselves.
As part of its MO, The Thing (1982) consumes and imitates any form of life. And we DO mean ANY. Be glad Antarctica is practically devoid of life, or our heroes would have been dealing with more mutated animals than just the 'dog' they incinerated.