While cleaning up some stuff I stumbled uppon this code snippet which lets your pc speaker beep the Mario theme song!

Console.Beep(659, 125);
Console.Beep(659, 125);
Thread.Sleep(125);
Console.Beep(659, 125);
Thread.Sleep(167);
Console.Beep(523, 125);
Console.Beep(659, 125);
Thread.Sleep(125);
Console.Beep(784, 125);
Thread.Sleep(375);
Console.Beep(392, 125);
Thread.Sleep(375);
Console.Beep(523, 125);
Thread.Sleep(250);
Console.Beep(392, 125);
Thread.Sleep(250);
Console.Beep(330, 125);
Thread.Sleep(250);
Console.Beep(440, 125);
Thread.Sleep(125);
Console.Beep(494, 125);
Thread.Sleep(125);
Console.Beep(466, 125);
Thread.Sleep(42);
Console.Beep(440, 125);
Thread.Sleep(125);
Console.Beep(392, 125);
Thread.Sleep(125);
Console.Beep(659, 125);
Thread.Sleep(125);
Console.Beep(784, 125);
Thread.Sleep(125);
Console.Beep(880, 125);
Thread.Sleep(125);
Console.Beep(698, 125);
Console.Beep(784, 125);
Thread.Sleep(125);
Console.Beep(659, 125);
Thread.Sleep(125);
Console.Beep(523, 125);
Thread.Sleep(125);
Console.Beep(587, 125);
Console.Beep(494, 125);
Thread.Sleep(125);
Console.Beep(523, 125);
Thread.Sleep(250);
Console.Beep(392, 125);
Thread.Sleep(250);
Console.Beep(330, 125);
Thread.Sleep(250);
Console.Beep(440, 125);
Thread.Sleep(125);
Console.Beep(494, 125);
Thread.Sleep(125);
Console.Beep(466, 125);
Thread.Sleep(42);
Console.Beep(440, 125);
Thread.Sleep(125);
Console.Beep(392, 125);
Thread.Sleep(125);
Console.Beep(659, 125);
Thread.Sleep(125);
Console.Beep(784, 125);
Thread.Sleep(125);
Console.Beep(880, 125);
Thread.Sleep(125);
Console.Beep(698, 125);
Console.Beep(784, 125);
Thread.Sleep(125);
Console.Beep(659, 125);
Thread.Sleep(125);
Console.Beep(523, 125);
Thread.Sleep(125);
Console.Beep(587, 125);
Console.Beep(494, 125);
Thread.Sleep(375);
Console.Beep(784, 125);
Console.Beep(740, 125);
Console.Beep(698, 125);
Thread.Sleep(42);
Console.Beep(622, 125);
Thread.Sleep(125);
Console.Beep(659, 125);
Thread.Sleep(167);
Console.Beep(415, 125);
Console.Beep(440, 125);
Console.Beep(523, 125);
Thread.Sleep(125);
Console.Beep(440, 125);
Console.Beep(523, 125);
Console.Beep(587, 125);
Thread.Sleep(250);
Console.Beep(784, 125);
Console.Beep(740, 125);
Console.Beep(698, 125);
Thread.Sleep(42);
Console.Beep(622, 125);
Thread.Sleep(125);
Console.Beep(659, 125);
Thread.Sleep(167);
Console.Beep(698, 125);
Thread.Sleep(125);
Console.Beep(698, 125);
Console.Beep(698, 125);
Thread.Sleep(625);
Console.Beep(784, 125);
Console.Beep(740, 125);
Console.Beep(698, 125);
Thread.Sleep(42);
Console.Beep(622, 125);
Thread.Sleep(125);
Console.Beep(659, 125);
Thread.Sleep(167);
Console.Beep(415, 125);
Console.Beep(440, 125);
Console.Beep(523, 125);
Thread.Sleep(125);
Console.Beep(440, 125);
Console.Beep(523, 125);
Console.Beep(587, 125);
Thread.Sleep(250);
Console.Beep(622, 125);
Thread.Sleep(250);
Console.Beep(587, 125);
Thread.Sleep(250);
Console.Beep(523, 125);
Thread.Sleep(1125);
Console.Beep(784, 125);
Console.Beep(740, 125);
Console.Beep(698, 125);
Thread.Sleep(42);
Console.Beep(622, 125);
Thread.Sleep(125);
Console.Beep(659, 125);
Thread.Sleep(167);
Console.Beep(415, 125);
Console.Beep(440, 125);
Console.Beep(523, 125);
Thread.Sleep(125);
Console.Beep(440, 125);
Console.Beep(523, 125);
Console.Beep(587, 125);
Thread.Sleep(250);
Console.Beep(784, 125);
Console.Beep(740, 125);
Console.Beep(698, 125);
Thread.Sleep(42);
Console.Beep(622, 125);
Thread.Sleep(125);
Console.Beep(659, 125);
Thread.Sleep(167);
Console.Beep(698, 125);
Thread.Sleep(125);
Console.Beep(698, 125);
Console.Beep(698, 125);
Thread.Sleep(625);
Console.Beep(784, 125);
Console.Beep(740, 125);
Console.Beep(698, 125);
Thread.Sleep(42);
Console.Beep(622, 125);
Thread.Sleep(125);
Console.Beep(659, 125);
Thread.Sleep(167);
Console.Beep(415, 125);
Console.Beep(440, 125);
Console.Beep(523, 125);
Thread.Sleep(125);
Console.Beep(440, 125);
Console.Beep(523, 125);
Console.Beep(587, 125);
Thread.Sleep(250);
Console.Beep(622, 125);
Thread.Sleep(250);
Console.Beep(587, 125);
Thread.Sleep(250);
Console.Beep(523, 125);
Thread.Sleep(625);