How to make spherical chocolate-enrobed candies?
What you need, my good man, is a candy fork.

Basically it's a two-tined fork with incredibly thin tines. Dip, lift, allow excess to drip off, place on parchment (you will get a tiny 'foot' but this is normal). 

unless you're talking about absolutely perfect spheres? to my knowledge this is not doable by hand, you will need industrial machinery. and the two hemispheres method will leave you with a seam.

i have heard one solution for the tiny hole left by a thin skewer is another tiny dab of chocolate and a quick blast with a hair dryer to smooth out any imperfections, but i have never tried it myself.