Could I get all the powers of the Darkness without having the malevolent entity living inside me, waiting to kill and devour every human I come across? (Powers ARE objects! ...If you're a programmer, lol. ...IT WAS FUNNY TO ME!)
Outside that, I'll take a cubic centimeter of programmable nanites. Have a convenient controller that'd double as a smartphone (or perhaps have the controls as a smartphone application), and I'd be able to do damn near anything. Including using the nanites to make more nanites. Oh, or, instead of a controller thingy/program, why not wire the controller so I can control them with a thought?