Yes, you can add the cards individually but they cost $8 each....3 for $20.  $60 for 10, $100 for 20 and so on.  I generally put one card of each in the packs of 10.  So if you could write down the names or take a snap of the cards you'd like and send it to me when you place your order, I will then package it up for you and if any are out of stock I will let you know and we can switch them to what is available.