Every Dungeon Master needs dice.  Here are a few that I've picked up over the years.

Gamescience translucent blue dice set (d4, d8, d10, d12, d20)

Mini glitter d8, d10 (multiples of 10)


Mini translucent d6s


Transparent dice (d6, d8, d10s, d12)


Transparent d10s (multiples of 10)


Opalescent d20s


Nested d10


Nested 2d6


3d6 inside a transparent d6


Opalescent d6s

Small opalescent d6s

Gamescience d100


Gamescience temperature sensitive colour change dice set (d4, d8, d10, d12, d20)


Gamescience glow in the dark dice set (d4, d8, d10, d12, d20)


Translucent d10s (multiples of 10)

Round d6


Translucent d10s