There’s no practical application I can see, but this was still fun to watch. Curious craftsman Kurahito wanted to see if he could turn wood into Velcro with a carefully-applied gouge.
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Surprisingly, as you can see below he gets it to work on the first shot–with a caveat. (You can click on the CC button for English subtitles.)
I suppose Velcro that only works a few times isn’t exactly a great use of the material. As for the toy idea he mentions, I hope the child playing with it has leathery hands!