I've used Ponoko in the past to laser cut materials for projects. And they've always done a great job. But I'm completely fascinated by Glowforge, a home laser cutting and engraving machine.
It really is amazing to see how technologies like this are becoming more and more affordable and accessible to designers and makers. And while $2500 is still expensive, it's a lot less expensive than it was 5 or 10 years ago.