Rip Read is a star painter, or "startist" as he calls himself. Specifically, he paints stars and galaxies on the ceiling.
Rip uses phosphorescent pigments (that glow for up to 25 hours) to create his artwork. Though I haven't seen it in person, he assured me that his stars not only glow, they also twinkle and shimmer - just like the actual stars in a night's sky - due to a clever layering technique to create an illusion of depth and movement.
Note: Yes, the photos on his website are photoshopped - I've had an email
conversation with him regarding "night" photography and Rip said that he'd tried everything (using all sorts of low lux cameras) but nothing had managed to capture his "stars" just right.
Link [self-starting audio] - Thanks Rip!