I just received this awesome Thor Holvila bonsai pot in the mail, but it only has one tiny drainage hole. I don’t have pictures yet, but you can see the hole in the second to last picture here: http://thorholvila.tictail.com/product/palm-size-1708-13-xxx. It would offer barely any drainage and I couldn’t wire the tree into the pot. How and where on the pot do I drill extra holes for wiring and drainage, considering this is a small pot that is irregularly shaped? What drill bits should I use, what size drill bit, and what technque should I use to drill the holes?