"Todd" at light your reptiles puts many layers of card board wrap on the bulbs. He doesnt even cheat and preinstall them in the fixtures. I have also ordered "ultrasuns" T5HO from discount sites, they also arrived undamaged with "standard" packaging.
I ordered Reptisun T5HO bulbs from Amazon and had them shipped to Korea. All arrived perfectly fine without any issues. That was just my experience though - I can't speak for the packaging of other retailers.
I just had some delivered from Josh’s frogs (via Amazon). Looked to be thrown in front of my door and in original box...no additional box to cushion it. Assumed it would be broken...it works!