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7. This mask was once touted as the cure for a hangover.

8. This device was supposed to help parents teach their kids how to walk, but it probably ended up injuring them instead.

9. This one-wheel motorcycle came around in the 1930s and was capable of reaching speeds up to 93 miles per hour.

10. The Cyclomer was an amphibious bicycle made in the 1930s that was supposed to be able to drive on land and on water.

11. This wearable radio receiver advertised in 1949 cost around $7.95 and came in a variety of colors. It’s almost a very antiquated version of an iPod.

12. This folding piano was designed for bed-ridden patients in 1935.

13. These crazy kids from Germany used bike tires as flotation devices in 1925.

14. If bike tires aren’t your thing, check out these wooden bathing suits from 1929 that were supposed to make swimming much easier.

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