How to mark chicks for identification?

[hfamily]

How Do You "mark" Your Baby Chicks To Tell Them Apart?
https://www.backyardchickens.com/t/225296/how-do-you-mark-your-baby-chicks-to-tell-them-apart

 

[Juliet512]

We have 5 different breed in the incubator right now. Once we moved them out of the big incubator in to the small styrofoam the eggs are put into dollar tree baskets. I just ordered the rubber bands that were recommended in another post to keep them identified.

what rubber bands? Im trying to figure out what to use on freshly hatched chicks also.