They usually only have the regular ones around 6 weeks old. At least that's how old they are when my pet shop sells them.. they go quick.
I recently went i think last saturday and i saw one that couldn't have been more than 4 inches long.. little cutie pie.
I have seen a couple there with a little color.. like a little orange down its back.
If you wanted a certain, guaranteed morph (red, citrus, etc.) or a silkie/leatherback you need to go to a breeder.