Reminds me of Jane Curtain interviewing Dan Ackroyd as CEO of Mainway Toys.
Ones I can remember:
Invisible Pedestrian (all black Halloween Costume)
Human Torch (a Bic lighter and some oily rags)
Bag Of Glass (a bag of glass - hours of imaginative fun)
Oops! It was Candace Bergen originally. Here's a link to the original skit, which they revisted often with Jane Curtain as the interviewer.
http://snltranscripts.jt.org/76/76jconsumerprobe.phtml