Jai Sri Ganesha,
Vishnu Vishnu Vishnu_
Sri Vishnu Pad puja is not just an oblation in the Yajna of Sacred Baisakh, nor an offering in the lotus feet of Vishnu, it is a comprehensive truth to enjoin eternally in faith with to cut ascender the three streams of Kaal, past, present and the future to relieve the Atman from its karmic bondage, in fact, all these are unified truth of Maya to deceive the Atman for long,
There is no such specific format for it being Vishnu is not just an idol or identity but a truth of eternity all beings relate to, and Maya feeds them all in truth with, there is no such defined way to adore it being Vishnu is the truth of infinity all exist in, hence any mimic show in the name of adoration may not be that helpful, just simplicity of self in truth with the cause could be the best part to perform Vishnu Pad Puja,
Vishnu Vishnu Vishnu,
May Lord bless all,
Thanks, please