Generally the two words of the ambigram can be read by means of a 180 degrees rotation (that´s turning it upside down), like in this case where the name Azhavur can be read both ways.
For professional use or plain funRelated tattoos:

Ambigram

Ambigram

Love and soul ambigram

Ambigram

ambigram

Ambigram

Ambigram

Ambigram

Ambigram

Ambigram

Gecko ambigram