hmmm i would maybe get a few smaller rocks or something of the common ones, and maybe just lil frags of the High End ones
Some nice commons that i can think of off top of my head would be:
Eagle eyes
Greenbay packers
goochers
Radioactive Dragon eyes
Mohawks
wham'n watermalons (one of my favs)
Fire and Ice
Tubbs Blue
sooooooo many lol, to start get some that catch ur eye, but i would wait a bit on high end ones until u see how others do