Do you think the add is still good? :)
I found THIS interesting story by the son of the guy who developed the idea.
I also thought the ad was neat by showing dad messing around with a kit along with the kid while mom looked on with approval.
[Sidebar] Back in the '50s a teen buddy of mine bought a chemistry set and checked it out in his living room. He said he added two chemicals together in a vial and the damned thing turned purple, foamed up and started spilling all over his mom's new rug. He kept pouring in more chemicals trying to make the solution inert and instead it just foamed and spread even more. He said he felt like the Sorcerer's Apprentice in that Disney movie.
Finally, he added the right chemical but by then the stain was three feet wide and a BRILLIANT PURPLE. I think he is still grounded.