Dear its sand, cement and concrete added in it More sand with very less amount of cement added in it and a good amount of concrete added😊 Use normal amount of water for soft shapes and for crunchy sounds use more water💦 Just make a paste not too dry or don't make it in the form of paste just take a mold and take out the shape🙂 I hope this will help u👍 And all these sand, cement etc is available on construction shop u can buy them from the shop☺️
