DiceRoll

DiceRoll is a simple addon which changes the icon for any macro called 'Roll' to the dice icon used when an item drops.

Usage:

Press Escape, and click Macros. Click New and type Roll into the macro name, choose any icon (it doesn't matter). In the macro commands box type /roll and click Complete.

Drag the Roll macro into your toolbar, you now have a clickable icon that does a /random 100 with the correct dice icon not available in normal macros.