Chicken charm set: which breeds?

[SeraCross]

My family farm is going into the egg business and I'm designing graphics for our merchandise. I have already made a key chain/phone charm for my Etsy shop https://www.etsy.com/listing/227965274/mango-the-harvest-moon-chicken-acrylic but wanted to add three more breeds to make a "flock set".

I was thinking about a Buff Orp, RIR, Blue Ameraucana, and either a Black Australorp or BCM.

Are these good choices? What others would be good?

 

[Pork Pie]

Maybe supplying breeds that produce novel egg colours may be worth considering?

Ct