building a lego M.O.C.

Hi there! I've just created a M.O.C. creation (my own creation) mech so I came across a Lego micro figure and a few other parts. You can buy Lego micro figures with Lego game sets. Lego micro figures are 2 cm tall. Mechs are gigantic human shaped robots with no heads. The empty hole (were the head should be) is were the person sits/stands.