New member, natnee, had a humidification issue when flying with his/her mandolin. I thought I'd post this here for everyone needing humidification.
Marty Reynolds is most excellent luthier/repairman whose shop is in The Podium, a great music store in Dinkytown, Minneapolis, MN. Many forumites here probably know Marty.
Here is a link to Marty's advice on humidification ==> http://www.thepodium.com/t-instrumentcare.aspx
And here's a separate link to Marty's instructions for making your own instrument humidifiers.
==> http://www.thepodium.com/t-makinghumidifier.aspx
If you go to The Podium and ask to buy a humidifier, they'll most likely tell you that no commercial humidifiers work as well as Marty's and advise you read his page and make some. I have Oasis humidifiers in most of my instruments year round but I also keep one of Marty's design in each instrument case through the long Midwest winters. My instruments are happy and stay in tune much better.

- Dub

