Surfing the net I’ve fond this interesting stone mat, that can make you feel that you have a piece of nature in your home.

Polished smooth by river water, the flat stones in this bath mat create a wonderful spa experience, gently massaging the bottom of your feet in total comfort. Our absorbent, durable backing ensures that the mat sheds water, dries completely, and holds its shape. Away from the bath, it works equally well as a doormat.  Buy it from VivaTerra for 59$