I doubt he'll need rubbers.......not unless he's going to start making slippery balloon animals.
Lets make a list of what you should take to your dorm and what you should not.
Should: Your computer.
Should not: Your video game collection you invested thousands in.
Should: An open mind. You'll meet lots of people very different from you, so take all the opportunities you have to "broaden your horizons." Look into studying abroad/living in your school's International House if they have one. Interacting with as many people as possible that are as different as possible will benefit you hugely in the future.
Should not: Emotional baggage/personal drama. It'll only prevent you from moving forwards.
(Cheesy, I know, but it bears saying nonetheless.)
Anything of value should be locked down. I hope you have a security cable on your computer.
Bring your own bedding, even if there is some provided. My halls provided the worst bedding. I dread to think of the bodily fluids that had been deposited over the years.
Basic school supplies, maybe a microwave, mini-fridge, etc.
There are schools that provide bedding?! *shudder*
I was surprised to find it there! You could even take it and have it cleaned. You didn't get the same set back though.... it's just all wrong!