OK, flies is an overstatement—the UFOoid Hoover Constellation vacuum cleaner floats on a cushion of air, as this commercial makes abundantly clear. Don't miss the row of dazed housewives pretending to be fascinated as the Constellation scoots down the table, all the while secretly wondering where to get their next scrip for Miltown. Mmm, floating through housework.

In the U.S., the Constellation sold for $97.50 when it was introduced in 1955—and you can still get one today.