How does one make Tayammum, when there is no mud around, generally the houses in the Western countries, you won?t even find dust, etc, and the walls of the house are painted.

Tayammum may be performed with anything that is Jins-ul-Ardh, i.e. anything
from the earth. This includes stones, cement, bricks, claypot, etc.

The principle is - whatever becomes ash or melts by being burnt or heated
cannot be used for Tayammum, e.g. trees, grass, metal, gold, glass, etc.

and Allah Ta'ala Knows Best

Mufti Ebrahim Desai