Most people out there can appreciate a good prank. You know, the kind that aren't over the top, but brilliant in their simplicity. Below we have 10 awesome pranks to play on friends that can be achieved in your home. Each one has a cost, preparation time and cruelty factor scoring system that can help you decide which suites you best. You can, of course, choose to put your own spin on things and add that personal touch but remember not to harm anyone too drastically! Take a look!