Ever wanted to look special on a night, out but couldn't afford a decent wig? Worry no more - you can hire them instead!
This does beg the question of why on earth would anyone pay good money to wear a wig that had previously been on somebody else's head, and surely they would want to wear a wig all of the time, unless they normally had a hankering for the good old Bobby Charlton look most of the time. Just shave it all off.
Then again, this was the good old 1970's. It was a different world then.