I had to laugh at this one. Pretty simple build and concept. Not so sure how practical it is but could be a good experiment to do with kids.
https://www.instructables.com/id/How-to-Make-Vacuum-Cleaner-2/
I had to laugh at this one. Pretty simple build and concept. Not so sure how practical it is but could be a good experiment to do with kids.
https://www.instructables.com/id/How-to-Make-Vacuum-Cleaner-2/