Guaranteed Luvfibles Profits

Luvfibles ad from the back of Pack-O-Fun magazine May 1977.

Where can you find a guarantee like that nowadays? It says "If you order one kit for each member selling and you don't make the sums shown blow, I'll send you a check for the difference."
Even without that guarantee i love the cheerful Daisy candles! This second one comes from inside Pack-O-Fun November 1975

Often i wonder with ads like these from past craft magazines what would happen if i would actually send in the form. I know, probably nothing, the address won't exist anymore, or the person/company isn't located there anymore, but wouldn't it be wonderful if it would still work? I would put in my order!