If you need to find funny t shirts for your college students, then you should get online and check out all of the amazing designs that are on all of the amazing websites. I do not think that even if you sat all day, for a week straight, you still would not be able to go through all of the funny t shirts that there are on the web.
Your college student will want some of the drinking funny shirts, even if they do not drink yet. It will make them fit in better in the dorms. I know that you do not want them to set the wrong impression, but it is better than wearing their high school funny shirts.
I have ordered a few funny t shirts for my son to take with him, even if he does not wear them, maybe he can sell them to the people who are attending the great fraternity parties every night and not studying.
So, have faith in your kids, but send them off the college prepared, to wear the drinking funny shirts, or actually doing the drinking. Make sure to have all the necessary talks with them before you drive away from that college.