Probably not the coin, but the coin within the package--maybe. You may wish to check out Cheerios memorabilia from the 60s and 70s to give youself an idea of what 'old' Cheerios promotional items are valued at today.
Merry Christmas,
Don...
That won't be worth too much, but if you get one of the dollars in the Cheerios packaging...those are worth a LOT considering most of them are a slightly different variety than the ones released to the public.