Might belong more in the mods section...

[gamgam2]

Might be a fun mini-feature.

Have a large room, seperate from the game, maybe downloadble or something.
The mini-mod would allow you to create objects at your free will, such as stairs and such.
You would also have the option of creating boards and such, lots of various objects, along with balls and such.
This would allow the player to get used to the enviroment by experimenting on how the objects react with each other, along with alittle fun by creating domino effects with blocks and balls and such.
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What are your thoughts on this?