So they came near and carried them in their coats out of the camp, as Moses had said.
#leviticus 10:5 #shmini

Nadab and Abihu were consumed by fire from Heaven. This verse indicates that there was something left of them, enough to carry away, at least. Either the Levites used the coats because they didn't want to become unclean by touching a corpse, or there wasn't enough of the dead men to carry them any other way.