Purely in the interests of science I made a trip to the vending machine.
Test 1)The Twix bar that used to have the cardboard inside was now devoid of it. Hmph, never saw it coming or noticed it happened.
Test 2)M&Ms, never had it that I could remember, still doesn’t.
Test 3) Pearson’s Salted Nut Roll. Made here in St Paul so I’m not sure how widely distributed it is (I know they don’t get 'em in TX because a co-worker just sent a box down to her family). This one had the white insert that it’s always had to keep my nuts from rolling off the roll too much. Sure you lose a couple stragglers, but there’s always more.