Providers of a multitude of laser-safe materials, Kitronik also provide a range of electronic components and mini kits, along with a host of tutorials aimed to teach you how they can be used; the latest of which is this cute mini LED desk lamp.
Super simple to put together, you can buy everything you need right from Kitronik (assuming you don't have the parts already!). Head over to the blog post to find out how to make your own. If you're interested in learning more about electronics, head over to Kitronik University - where they have a range of guides and tutorials to get you started.