I've ordered them (cups) from coastal and mullberry. Personally I think that I perfer coastal. I just got a cup from mullberry -- they were supposed to be 1 inch worms, but are really more like a quarter inch, so I have to wait for them to grow up. But mullberry had a great deal on wax worms...
hermie loves silk worms and does refuse his crickets most of the time... but then again I started feeding them BECAUSE he wouldn't eat crickets. He just loves worms and this was one of the most nutritious ones that I could find for him.
i'm a big fan of these "cups of silkworms" that you can...
My tww cents ... I don't think that chams really hear noise, they just feel vibrations so I am not sure how much it bothers them, but I do not think that it does much (unless you have wall shaking noise levels). My big concern was that they need 10-12 hours of sleep ... and I next to never get...