One example of the peak of that craziness was in 2016, after Snapchat released glasses with an embedded camera, which were more or less received as as a gimmick by their user base, Snapchat changed their name to Snap Inc and told their investors that they're now a hardware company.
Well that was the peak of the kickstarter era, tons of wearables and new projects. You know, like Pebble
Or the Nixie [1] (actually nixie was earlier, but went out of business in 2017)