sometimes when you search for "chakras" with google images, sometimes you get this.

from this website

Q. How many Iyengar yogis does it take to replace a light bulb?
A. Only one !

BUT, they will need:
a sticky mat
a backless chair
two blocks
five blankets
a bolster
six ropes
two belts
six assorted benches
a bandage
a slant board
two quarter rounds
three weights
one wooden horse
a certificate