Not a regular common practice for daily prayers but it is followed for special occasions. For taking the kind of shankha it is beneficial to have a shankha that is “dakshin Varti” which means circling towards the south(opening) is best. Any size you can find is fine.
Now take the sankha and dip it in the water of the kalash and take the water into the shankha. take a couple leaves of tulsi if you have , if not then some plain rice or few petals of flower are also fine. Now take this shankha and place it in a copper plate that is called Tarbhaanu.
a stainless steel plate is also ok.
Join your hands in prayer and say the following shloka to bring the shankha as part of the ceremony. Shankha is considered to have born from the ocean so invite Lord Vishnu and Shankha to the special occasion.
video and the written format of the shloka is as below
3. Ghantaanaad घण्टानाद (Sound the bell) and
4. Aagaman- आगमन् (invitation)
(Ringing of bell ) Is Mainly to bring your own mind’s focus and concentration into your present task from the wandering around the world. So Be in the present. Remember, it is all to bring yourself within. Go within. Connect to yourself. Close your eyes if possible and say the following shloka as you are ringing the bell or as you do the ghantnaad (Sound of the bell) “Audio of all shlokas at the end of Gurudhyaan shloka”
आगमनार्थम् तू देवानाम् , गमनार्थं तू राक्षषां
गुरुवे घण्टारवं रम्यम् ,देवता वानलान्च्छनं
शुक्लं बरदरं विष्णुं शशि वर्णम् चतुर्भुजं
प्रस्सन्न वदनं ध्याये सर्व विघ्नो पशान्तये
Aagamaartham to devaanaam, gamanaartham to raakshashaam.
Guruve ghaantaaravam ramyam,devataa Vaanalaanchanam.
Shuklaam baradaram vishnum,shashi varnam chaturbhujam.
Prassana vadanam dhyaaye,sarva vighno pashaantaye.