A classic folk toy with roots possibly in ancient China; tumbling blocks toys have made appearances in many cultures and societies.
To make my own, using string and a staple gun, several blocks are weaved together making sure to interlace between blocks. To be honest I didn’t quite comprehend how to put it together until I started making it, and it seems to rely on having one odd and one even number of strings on either side. After attaching the string to the previous block, you pass the string across and place the next block on top, and then passing the string in the opposite direction.
Ribbon would have been better to use but I only had string.