A real fully customizable order number ?

[Shiker]

Just one question, new is PrestaShop, osCommerce experience.
Can anyone could tell me if exists a real customizable procedure or module (free or paid) which enables the merchant to fully customize the order number? I mean having an order number such as D123XYZ456 or anything like that, with no possibilities for the customer to read a sequential number (id_order). Or using the same approach for a common order/invoice number ?
I red many things here and only found mechanisms which interacts with sequential id_order field in ps_order table.
Any solution, approach or possibilities will be welcomed, I supposed many merchants here had the same problem.
Many thanks in advance