A start-up called Nebra has included its AnyBeam portable projector as a reward on its current Kickstarted campaign. It claims that, as this product uses lasers rather than bulbs, it avoids many of the drawbacks of other similar projectors. This new product comes either in a housing or as a Raspberry Pi-moutable module.
https://www.notebookcheck.net/The-world-s-first-pocket-laser-projector-goes-on-Kickstarter.415646.0.html