How can I hang hand mirrors on my wall?

Try an adjustable plate hanger like the one here (it doesn't have to be from Target...they're available at dollar stores, home improvement stores, etc.)

Get creative and use a hangman’s noose.

You’ll have fewer sleepover guests over the holidays, guaranteed.

i call it a “two fer”

What? Does this read Mr. Anonymous or Mr. Ridiculous?

Carol,. Buy some 1 inch nails and put them around the mirrors to hold them in place. I'd arrange them on the floor first, to see what looks best where. Aloha!

Can you use Command hooks?

There are new sticky plate hanger hooks on the market now that would be perfect for this.

https://www.youtube.com/watch?v=RMc9yN2ypMc