By the time I became aware of Soupy, he was on the game show circuit. However, he will always live in my mind as a legend mainly because of his on-screen hustling of the kids - telling 'em to fish a $20 out of Mom's purse and send it in.
That's fabulous, and certainly wasn't illegal at the time. I think that happened in the course of his kid's show - the one with White Fang and Black Tooth.