Next Bright Idea? From 1922...

[onyourtoes]

I guess this one never caught on. From Science & Invention Magazine, January, 1922.

 

[4608]

First of April?

 

[inquisitor]

Well, it does have men wearing heels, so there's that...

[robbiehhw]

"Inspector Gadget, Springs! " and then leap a building - That picture comes to mind.

[manoleat]

Silvia Fado includes some small springs in her designs. Surely not like shown above but they still take a bit of the shock.