Flash game (How do I display moving items in random order?)

:puzzled:
Ok
I’m creating my first game in [color=blue]Flash mx.[/color]
Its a conveyor belt game where toys move from left to right. There are several boxes located underneath the belt.
The user has to drag and drop each toy into its correct box.

I want each toy to continously come out in a [color=red]random[/color] order.

(1 idea) randomly select movie clips from the library?
each movie clip representing a toy.

[color=blue]any suggestions at all wud be welcome![/color]

[color=blue]thanks[/color]