Something else. If you ever wanted to play Billard, Snooker, Carambolage ect. in 3D VR, you could try this game. Resolution is very low, but it shows what other little things VorpX can provide. Even Headtracking is working in this game.
You can get it almost anywhere for a few cent, ISBN: 4019393957170, its bundeld with many cheap game collections too.
There may be some way better looking billard games out there, though this is the first one i was able to give a G3D profile. (you can download it from the cloud). Please dont be disappointed about the low resolution, but the 3D feeling is quite nice.