Aww, cute
Good luck with them. I'm tempted to get a couple of dozen chinese painted quail eggs off Ebay- tonnes cheaper and easier than sourcing adults. And although I know it's naughty, I really want Muscovy ducks...
If you get button quail chicks, be very careful as they are very fragile. I had 23 hatch this past winter. I've got six left. Make sure they constantly have water in front of them. That's how I lost most of mine. When I was moving, it was a four hour drive one way. They couldn't have water on the trip, of course, but we didn't think anything about it since I've moved birds/animals all of the time. Well, that's how they ended up dead. They are so tiny that they dehydrate quickly. Once they start losing their balance, it's a 50/50 chance of bringing them back. Just saying to make sure they have plenty of water if you plan on going somewhere for most of the day sometime.
Oh, and as per the dyed silkies pic... There are several ways to do it and none of them hurt the bird. You just use food colouring which is non-toxic. You can either bathe them in it or put some in their water. As they drink it, it will slowly be absorbed into the feathers. People like to do things like this for Easter or "shows".
There is also a dangerous way to do it that I think is very stupid. You inject dye into the egg and the chick comes out in bright colours. They go away as the chick ages, but if you don't know what you're doing, you could kill the embryo. I think it's just...not worth the risk just like dying fish.
Forgot to add:
Grahamsokel - Check the chicks over carefully and make sure they are purebred. It's very easy and possible to get ripped off on eggs. First off, check for feathered feet. I can see that the current chicks have this in the pics, so you're okay there.
Secondly - You know what a comb is, right? On newly hatched silkie chicks, it'll look like they don't have one. If it looks like they do, they aren't pure. It should just be a blank spot of dark skin. No bumps, ridges, or anything.
Thirdly - Dark skin/beaks. They have that. Good.
Fourth - Toes. Each foot should have five well developed toes. The fourth and fifth should not be connected or look like they are one toe with two nails. They should be very obviously separate.
Fifth - And the most obvious - feathers that come in should be silkied. That's a given.
Give us some pics as they mature ! 
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