Where can I find robotics parts?
Ask a local university ( that offers robotics ) if they can sell you some, otherwise ask where they purchase it from
Where can I buy headphones for xbox 360?
@Virgin Megastore and at @Smart Buy you could also find it at @MOG Underground
Where can I buy a new controller for my playstation 4?
@Smart Buy ,@Virgin Megastore and @MOG Underground has them on sale
Where can I buy a penny board?
You can find it at @Virgin Megastore in city mall, my friend got it from there