From what I have read I would keep it hidden and I also read you have to maintain the mojo bag. Just look up mojo bags on google and it should tell you more. Sorry i couldn't be of more help. Have a nice day or night(depending on where you live.)
Mojo bags are not meant to be seen or touched by anyone other than the possesor as it is believed that the other person's energy will influence the charm of the Mojo bag and which is why after it is touched it is considered "dead"; meaning that the power of that Mojo is gone and it won't do much anymore. As for the honey jars, I would believe it best for someone not to see your working; however, if they do then don't worry about it too much as this does not influence the working of the honey jar. Hope this helped.