RE: SCREAMING YELLOW ZONKERS!
I remember SYZ very well. Fiddle-Faddle and SYZ were made by Ovaltine in Villa Park, IL in the sixties. They were developed as spin-offs from the Poppy-Cock product. My dad worked as a quality control and research chemist at the plant and worked on new product development. We (our family) consider him the inventor of SYZ & Fiddle-Faddle and many other products that never made it to market. We (six kids) were his test subjects. I remenber him bringing home samples of early SYZ in plastic bags. He gave us different flavor attempts and we would rate them. Other things (flops) that we tried:
Ovaltine Candy Bars - very dry and crumbly
Ovaltine Candy Bars with milk chocolate - better
pre-flavored (in the kernal) popcorn - a big flop, he made onion, garlic and rye flavored- they stunk up the house and had no taste!
SuGus- actually very good- citris flavored salt water taffy. They were marketed and sold, but not for long