Hi Joel,
We have to agree with Rob... the paper sacks are "the cat's meow" for non-injurious easy shipping.
We use the paper punch and place a few holes along the folds; place a handful of shredded paper inside (for a nest); and place the cham in. The top is folded and stapled or taped. These can be nestled into more shredded paper for a cushy ride!
Yes, we have received and shipped using deli cups and other hard containers too. But if one doesn't have all those fancy things, the paper sack is the best alternative. When we use deli cups we place paper towels or even soft foam pads inside. If it is a montane species, a moist paper towel (in warm weather) is used to keep them comfy. In cool weather - no moist towels are used.
Rob uses cloth sacks too - and these are great for the larger chams (melleri, adult panthers). These are also nestled into shredded paper for comfort.
As the boxes are destined to get bounced around - it is a good idea to try to give the chams as much soft cushioning as possible.
Morgana - Reptayls, Ltd.