The Transformers Chocolate Flavored Cereal

From Transformers Wiki

We need a bigger image. Prime needs a bigger spoon.

The Transformers Chocolate Flavored Cereal would have been a chocolate-flavored concoction, not unlike Cocoa Puffs, manufactured by the Ralston Corporation. However, the cereal never made it to market and only test boxes have ever been found (one of which went for $349 on eBay).

The box claims the cereal would have had "more taste than meets the eye" and would have also had the ability to "transform ordinary milk into chocolate flavored milk" through some bizarre chemical process our weak human brains could never possibly comprehend. There also might have been a mail-away offer for a Jazz toy.

I guess we'll never know.