Found a few c's in the Crazy Coupons and Wacky Websites section:
First, removal of unnecessary capitalization where none is needed:
*Sonny the Human Squawkman (640),
*Rope on a Rope (647),
*"The Best of Old Time Radio Static" on Cassette (666).
These are the only Crazy Coupons that need to be redone. Other than that, everything's just fine.
Second, I just may have found real names here for some of them:
*Oat Bran (667),
*International Travel (686),
*Chatty Cathy (687),
*Crazy Straw (701),
*Lincoln Logs (731),
*Uncle Milton's Ant Farm (3810; before you ask, yes, this is a real product),
*Topps Gummy Bears (3812),
*Serial Killer Picture Cards (3813).
These are just the ones I could find and that I figured out. If you can find any others, be my guest. Otherwise, do with this information what you will.