Monogrammed deck of cards– I think this is a great idea if you have to get a bunch for many boys. (about 25 dollars)
The mighty mouse, which I just realized has been upgraded to the Magic Mouse (about 70)
Vineyard Vines collegiate tie (about 75 dollars)
These were a little bit pricier. But, when in doubt, gift cards are easy and you can put whatever amount you feel is appropriate.
Another great idea (that might need some coordination with the parents) is to put money on his student card. Most universities–probably all now– use electronic cards to swipe into buildings, but they’re also used as payment. Georgetown’s card is called a GoCard. A lot of restaurants (and CVS too) accept GoCard as payment. It’ll be a nice little cushion in a boy’s wallet to have some spending money put on his card in your name!