I need those monster dice so bad.
And those d17, d18 and d19s.
My favourite weird dice I own are probably the 32-sized glass die and the gamescience d50, though the dTotal is also awesome.
I dearly wish someone would make d48, d60 and d120s. (As well as more commonly available elongated tetrahedron d4s, rhombic dodecahedron d12s, and regular d24s in the shape the dTotal is in.
My favourite die, however, is one I didn't even order, I got it as an extra with an order from a now-defunct online retailer. It's supposedly a GameScience d8, and appropriately sharp(It's drawn blood!), in transparent light yellow, with gold glitter in it. Never seen another like it. Love it to death. NOBODY touches that die, rofl.
Ahh, dice, how I love you. *looks fondly at 956 dice*