Knocki is an interesting device that can turn any surface into a remote control. As the name of the product suggests, you can knock or tap on any surface that the Knocki is on, and it will translate into remote actions (which Knocki calls tasks).
Knocki started as a Kickstarter in May 2016, and it got successfully funded on July 2016. It raised a total of US$1,144,399 out of its initial goal of US$35,000 from 8,897 backers.
Flipper Zero is a portable multi-tool for “hackers” who likes to play around with radio protocols and access control systems. It started as a Kickstarter project on 30th July 2020. It was then successfully funded on 29th August 2020 after raising a total of US$4,882,784 from 37,987 backers, which blew past their initial goal of only US$60,000.
I was their early bird, so I paid US$119 (S$166) without shipping as Flipper could not determine the shipping cost then. When they managed to get their logistics sorted out in September 2021, I paid US$13.37 (S$19) for shipping to Singapore.