We do have lots of musical books, where you push the spot on the page and usually an animal plays some instrument.
At the moment, we feel he is a little too small at 2 for his own instruments, as they will be destroyed in pretty short order. They're high on the list of things to obtain when he's just a little more careful with things.
Drums can take a fair amount of abuse (within reason - better than stringed instruments, for example)... though you may not enjoy his early jam sessions. I gave my son a set of tuned handbells when he was 2, they were a hit, and hard to break.
At the moment, we feel he is a little too small at 2 for his own instruments, as they will be destroyed in pretty short order. They're high on the list of things to obtain when he's just a little more careful with things.