if they reject these, then defrosted pinks in a deli cup or small container with the snake for a few hours or overnight. If rejected then live pinks then live pinks in a cup, then defrosted pinks scented with the right kind of lizard (some sort of Fence Lizard or Spiny Lizard--genus Sceloporus, or if you live in the West, Tree Lizards, genus Urosaurus, or Side-Blotched Lizards, genus Uta) then an actual lizard of correct size (pretty small).
By the way, wait for the hatchling snakes to shed their first post-hatch skin before offering food.
Anyway, keep trying, maybe once a week, especially the lizards if you reach that point, but don't start with lizards because pyros like lizards and you'll only have to get them off lizards and onto mice if you offer lizards first. Lizards lizards lizards--how many times can I use "lizards" in one scentence?
I've hatched out a lot of pyros, and most of them eat defrosted pinks no worries, but there are occasionally those who are elected by the others to pay me back for all I've done to wildlife over the years.....and they're good at it.