Back in the 80s, fast food restaurants would occasionally give out "flexi-discs".  Basically, they were cheaply made, flexible, records.

Most of the time they were used as part of a contest (if the singers made it all the way through the Big Mac songs, you got a prize), but Burger King did do a giveaway that tied in the with TV show Alf.

When you get certain food items, you'd get an Alf toy and a flexi-disc with an Alf song on it.  Even though they are awful, I love these.

My favorite part of the commercial is how cheap Whoppers were back then:

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