I got my husbang a table shtender, it was a great present! If your husband learns lot, its a very useful gift. I dont think its too big to take back once u leave EY. Here are some ideas: a siddur with his name on it, an expensive pen, a brand name watch, a new challah cover or challah board, a leather chair.
At this point my husband would enjoy going out to eat to an expensive restaurant for dinner. That we will save for our anniversary which is coming up soon IY”H!!