this may not be up everyone's ally but here is a gift idea that i honestly believe every house could use and it being appreciated for many generations to come. simple tech always seems to win in the long run. a good christmas gift for anyone , easy to make and nearly all the material you should have lying around. pay attention to what i mention in the vid about making the total unit a tad bit longer to accomodate wide mouth jars.
enjoy......................
https://youtu.be/dtktmX3pBKQ