You can put them in a glad sandwich type container with lid /holes poked in the lid or sides of plasic. Or give each there own if they are bigger lizards.
I always tape the lid on each side also just incase it would pop off some how.
I would add a heat pack if the temps are really freezing, make sure you do NOT allow the heat pack to come in contact with the lizards/container, read that article I linked ya to, as far as heat pack placement (real important)
Best wishes , hope they arrive safe and sound, let us know!
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PHEve / Eve
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