Public Lab has developed multiple open source Do-It-Yourself spectrometer designs. Choose between the following: * **[Desktop Spectrometry Kit](/wiki/dsk)** - a precise and inexpensive webcam-based design built in a conduit box * **[Foldable Mini-spectrometer](/wiki/foldable-spec)** - a small paper model which attaches to a smartphone Both can be made from simple, easy to find materials for very little money. You can also purchase a kit to get started faster at the [Public Lab Store](http://store.publiclaboratory.org/collections/spectrometry)