Echoing Hourglass

The echoing hourglass is a useful tool for renewability. When placed within a structure's bounding box, sand/gravel placed inside it will turn into its suspicious variant after 40s, with loot inside according to the structure.

This only works in structures with archaeology. With TCC's other renewability and archaeology features, this allows every sherd and trim (except Rib, Spire, and Eye) to be renewable. This block also works with hoppers.

Hourglasses also have a unique animation as they make sand or gravel suspicious.

A very costly recipe, but very worth it.

Experiment and see what you can renew!