I have been reading ads for this sort of tire balancing scheme since the 1950s. Those ads were always among the classifieds in the back of magazines like “Popular Science” and Popular Mechanics.”
The “Astounding Tire Balancing Technology” ads would be listed among the ads for the “150 MPG Carburetor Gizmo,” the “Add 50-Horsepower Gizmo," the “Charles Atlas, Gain 50 Pounds of Muscles in only Six Short Weeks,” and the ads for “X-Ray Vision Eye-Glasses,” which purported to let the wearer see through womens clothes.
After all this time, I still do not know if the B-Bs, marbles, golf-balls, yada, yada tire-balancing thing actually works.
I do know that the “X-Ray Vision” eye-glasses do NOT work, but wearing those glasses will earn the wearer a slap from any and all females within slapping range.
The girls in the monogrammed angora sweaters and poodle skirts knew what I was up to.
Regards,
Cheeks Still Stinging, Gadget
PS-1: I still have several pairs of those "X-Ray Vision" eye-glasses.
PS-2: I did not gain the promised 50-pounds of solid muscle.