Laser-guided scissors are handy tools, but it's not always easy to find just the right one. You can find cheap scissors with lasers attached, but they could have crummy blades or be awkward to handle (especially for lefties). Instead, just make your own.
YouTube user TingaWinga shows how you can use cheap components to turn any regular pair of scissors into laser-guided scissors. You'll need some minor soldering skills to pull off this particular method, but it will also be fairly sturdy.
How to Build Laser-Guided Scissors [WonderHowTo]