Question
Is it makrūh to perform prayer on a prayer mat that has pictures on it or on clay [turbah] with engravings?
Category: The Place of Praying
Answer:
It is not problematic in itself but if it provides an opportunity for those who always accuse Shī‘ah, it will be obligatory to refrain from manufacturing such things and performing prayers on them. Also, if it entails absent mindedness and loss of concentration during prayer, it will be makrūh.

Refrence:
Ref: www.leader.ir