rah rah sis boom bah

Okay so my new band is named after Cathy Santoni from Full House

so if we wanted to be called the cathy SAN-Tone-ees (pronunciation)
how should we spell it?

I've been spelling it
The Cathy Santonis

but mike think that looks like
the Cathy San-tone-iss

so should wee spell it
the cathy santonis
or
the cathy santonies

thanks for the help