SMALLER LAPTOP POWER BRICK
The power brick you get with the new XPS 15 is small, but it can be made even smaller and neater. When you have done that, you can use the same design across all DELL laptops. Who doesn't love less mass to carry? :)
Razer made a really neat power brick for their Razer Blade:
(the big power brick on this picture is an unspecified standard brick, like you get with cheap laptops)
Try to make something like this, but with the DELL logo.