I'm a little late to the dance here, but I not only remember these floating plastics I still have a couple of packs. There was a time when Power Worms came in a true floating variety. We used these to throw over lily pads and floating weed beds. Dang things were deadly in the summer. Then Berkley changed these to a suspending worm, even though they were still called floating. No bueno. The sunk in the weeds and with every cast you'd bring in about a half acre of salad back with you. Next up, Bass Pro had some sort of floating worms and lizards. Only around for a little bit. So what to do. Keep searching. We ended up buying these Air Worms The looked as though they were the spawn of Leggos. French Fry was my preferred.
After a few casts, they would start to sink. Reel "em in and squeeze the water out and then good as new. Eventually the lack of finding floating anything is what led me to start pouring my own. Bought a couple of silicone molds from Barlows. Some floating plastics, some bubbles, and chartreuse coloring. And we were back in business. It has to be over 30 years since I used those Air Worms. Nowadays I still make my own floating worms and lizards. Although a much better quality. Only colors made were white. pink, and chartreuse. Weird but each color worked only on specific bodies of water. Learned by trial and error. This year I plan to add black to my selection with maybe some glow parts for night fishing
Getting back to French Fry. I'd imagine they can be duplicated very easily. Just takes imagination. I like the bead chain idea. On the floating worms I made, I wanted one with a cupped head to act like a popper. Only had to put a backwards bullet sinker. Imagination.