Granted, it is a box of 3000 military grade fragmentation grenades. Also, free with your order you get three extra boxes, three hundred Nuclear ICBMs, a squadron of 30 Apache attack helicopters, five F-22 Raptors, a space shuttle, and all the fuel needed to fill up all them for 100 years. Sadly I have to corrupt this. One of your nooks corrupts while you're working on its maintenance. As you kept all your freebies in a couple sheds, all rather close together. The blast sets off all your other nooks, your grenades, and all the rocket and aviation fuel, as well as destroying your air force. Amazingly, you survive the worst nuclear disaster in history, one that destroys almost everything within a 3000 mile radius. Too bad your so cancer infested and torn with shrapnel that you die within a fortnight, so mutated from the radiation and the fast spreading/growing cancer and mutilated from your lacerations that you're barely recognizable as a human being anymore. No one morns your death, as most anyone close is dead, and those who survive don't want anything to do with you.
I wish I couldn't turn a wish so simple as a box of grenades into a nuclear holocaust.