How to band feathered feet?

Wondering how to band chickens with feathered feet? wanted to get into breeding DUccle birds, but need to be able to identify them for lineage reasons.

I've seen people use colored zip ties for banding, but does that damage the feet feathers or is there a specific way to do it? my flock has always been small enough that I recognize every face and haven't needed bands.

I don't have good feet pics. please appreciate my darling Peaches being very confused about her egg suddenly becoming a baby (she stopped being broody after meeting children lol)