It is not very difficult ot make a tupperdor. Take a tupperware dish, preferably a large one, ad a humidifier, ad a hygrometer (optional), ad cigars and you are all set.
There are numerous ways to make your own humidifiers. Use green floral foam, 50/50 pg/distilled water solution, and a plastic soap dish or tooth brush holder. Drill holes in it and it's all done.
I highly recommend using the climax media. It come in 65% and 70% settings. It is used by museums to regulate humidity in their storage rooms. It works great and is low maintenance.
Just my 2 cents worth.
Matt