humidity chamber

[Jazzey]

How do you go about building the cheapest humidity chamber and what should I put in it??
What about moss or reptibark??
sorry for the dumb questions.
thanks,
Jazzey

[sketchy4]

you can use a small cardboard box or plastic container with a hole about 2 inches across and 1 inch high in the top of it. i just use a paper towel i keep moist to keep humidity