This is amazing and I want to add something like this to my side project list right now. But maybe it is a bit too extreme, i.e. using a ruler and glue won't s

This is amazing and I want to add something like this to my side project list right now. But maybe it is a bit too extreme, i.e. using a ruler and glue won't save you that much money compared to using some better materials. But I guess that was the intention of the author, extreme frugality.