Make a few "New Student" baggies with 5 extra of everything in them. As you organize things for your classroom during the summer, put the extras in these baggies (in preparation for students that would arrive mid-year). Now, you can just pull the “New Student" baggies out when you get a new student and all you have to do is add his/her name on the supplies.
Good Idea: Put an absent folder on the absent student's desk. The students at their table will make sure they get all of the work we do that day put in their folder. Check their folder at the end of the day and make sure there are not tests or activities that can only be done whole class. Then, when that student returns the next day, they put their folder in their backpack. The instructions to the parents are on the folder.