Big Cap for Big Hair Rollers under dryer

Hello :)
I have a couple feet of thick long wavy/curly dyed blonde hair- which I
love ... and I just rediscovered velcro rollers + soft cap hair dryer. Man,
my hair looks wonderful, everyone has noticed. I velcro roll my sectioned
hair, cover it with a great big cap made of the same material as a handi-
wipe with elastic, like a shower cap, to hold the rollers in place. Then
comes the cap from the dryer. It works fabulously for me, my hands are
free to work while my hair dryer runs, I can also go back to SLEEP and
wake up with really terrific looking hair. The big rollers make the right
"bend" in my hair, smoothing it into great big curls and the frizz is GONE.
Its smooth and full of body. (At night I can just twist it up on top of my
head and hold it with a scrunchy. Falls out great the next morning)

But... the handi-wipe cap has fallen apart and I can't find another one. I
just tried using a "hair net" but its not big enough to hold all the rollers. I
can't find another breathable cap to hold those big rollers under the
dryer, and for running around before I take the rollers out. Help!

I need to get a picture of this...really happy with my hair... but a little
desperate to find another cap!

Thanks in advance for any help :)