Enter a large room (30x30x30). The facing wall is covered with 900 evenly spaced spikes. If the wall you are entering from is examined, it's seen to be covered in 900 evenly spaced divots.
When this room Tumbles, the spikes act as plum-bobs pulling chains from (what is now) the ceiling. Each chain has items attached at foot-length intervals. There are 900 alchemical components-- vials of liquid, pressed plants, dried organs.
When the room eventually tumbles again, weights at the wall-end retract the chains back out of the room.
The components are organized very precisely by a system based on the humours:
turban of climbing?
Now, any recommendations for material component charts, or should I make one?