Ask For Custom Requests.

Nobody wants a cookie cutter bonsai tree.  Call the vendor you are purchasing from ask them for a special request.  If they can't accommodate you or at least of a bonsai explanation of why it can't be done.

 For example, you ask "Can you change the pot to that blue colored one?"  "This tree's pot can't be changed because it is already gonna go through stress from shipping and changing the pot immediately before will add to that stress, if your willing to wait a week extra.  That way I can give the tree some Super Thrive and the tree can recover from the re potting.  Or I can offer you a similar  tree in the blue pot from my nursery and send it out immediately".  That is the kind of response you should expect from a company that is about the art, and not reselling junk trying to get rich. 

Jason Moorehead
www.Best-Bonsai.com