Unless the cost of 6 or 8 foot fibre strands (where you would get them, I don't know) is astronomical, pardon the pun, you could pretty much use any well ventilated light source and make your own display (with extreme caution).
Hmmm... just like the drive in.
CRyan,
I would think that mounting the individual fibres through the dywall would be as simple as drilling a tiny hole through the plasterboard, inserting the fibre and using a hot glue gun to secure the fibre.
CAUTION. A drywall ceiling is not meant to support weight !!!
I saw this installed on a TV home building show a couple years ago and then checked it out on the web.... it took me all of about 10 minutes to conclude it was out of my price range... nice, if you can afford it!
I'm pretty sure someone on here has done one of these projects. I just don't remember who.
There are also starfield panels and infinite depth starfield panels available. I researched them quite a while ago, but the price was steep so I abandoned the quest, but I imagine they save a lot of time and offer a lot more stars than one would want to create themselves.