This guy has managed to get an original Voodoo 2 PCI card running on a current PC. He used a PCI to PCIe adapter (didn't know that existed), and then managed to force glide drivers to work.
Quite impressive seeing this working. I still have a couple of Voodoo 2 cards so it's tempting. But they are installed and working in my retro P2 Win98 system so I'm probably not going to bother.