My mother called her (now defunct) yoga studio “the Yoga Way”. Perhaps not the most original name out there, but it seemed to work for her.
Home of the Bendy People
Bender’s
That way you get free publicity every time they show a Futurama rerun.
Get Off Your Ashram
You Hatha Come In
Around The Bend
It’s rather dated, but…
I just can’t believe it’s Yoga
YouGa - Yoga with that personal touch
Go Ya!
Assume The Position
A Breath Of Fresh Awe
Lotus Louts
Stretch Limbo
Yoga Paradisa
Yoga Decaff
Peace Of Mine
Flex Ability
Yoga Me
Breathing Space
Ooooooooooh! This is awesome! Wrong type, but BRILLIANT!
La Vida Yoga
I third “Get Bent”, that just screams free publicity from all the word of mouth.
But if you want to go with something else, I also like this…
Gotta have a very skinny Indian man as part of your logo though.
Toto Yoga
Guru Yoga
YoYo Pogo Yoga
Tantricks, if she decides to branch out.

Yo-Ga! Yo-Ga! Yo-Ga! (know anyone who looks like Belushi?)
Yoga party works well too for that one.
Stretch’In
Also my first shot.
I like the Get Bent one, though, being somewhat perverse, I’d either leave the ‘Yoga’ off the end, or make it really tiny.
Twisted Sister
Ooh, that’s a good idea. Toga Yoga. It could have a Greek or Roman theme!
Yoga Bare
Mary Hatha Little Lambda
Heh. Probably copy-righted, but fun-ny.
add a health-food snack bar to the premises: Yoga and Yoghurt
(cutesy names are , well, cute. But customers wont pay for cute. They will pay for yoga lessons and food. )
And for a stretch to a Star Wars connection, there’s Yoga the Hut.