Look on the PS Store, under the General Starhawk Section (search Starhawk if necessary) The hand of the Founder's should be there, though at this time the Warhawk skins are not, waiting on word from some people about it
I never got either of my "gifts", but I'm not concerned anymore. LBI did reply to me at one point, said the codes were all in Sony's hands and they have nothing to do with them. I probably could have called Sony a long time ago, if I had really cared to spend an hour on the phone for some visual treatments... I decided to spend that time playing the game instead.
I'm not excusing the almost total failure of that promotion, but it's long done and, ultimately, not that big of a deal.
I aske dLBI and SONY but ni code yet, SONY says they have a team working on mine, and the phone call was picked up under 10 minutes if not 5 minutes.... still no code but LBI/SONY will probly do something
Otherwise, you may be able to find someone that had a code for the warhawk skins. The codes might be able to be reused like the Hand of the Founder code. In case anybody wants a Hand of the Founder, one of the codes is L9KM-JRNL-8QJN . I've known at least 3 people to use that code and it would work. Unfortunately i don't have a code for the WH skins.