**Sorry the video is in spanish but the commands can be seen perfectly and I explain how it works below**

A while ago i designed this simple, yet EPIC design for a CTM map.

How it works:
When you place the wool on top of the lapiz block, the commandblocks detect which wool it is (white, orange, green), plays a few sounds and spawns some particles, and then changes the woll block for a FallingSand entity with a specific "Motion", or direcction, making the wool get shooted to its place in the monument.

Feel free to edit it and use it in one of your maps but message me so i can play it later :D