Nice plate/bowl/cup set (eg bunny kins, royal doulton, whatever) or silver spoon. Ok so he's not going to use it for a while but he won't use any other pressies right now either
Swing/jolly jumper/bumbo
Gorgeous high quality teddy bear (always hilarious when it's bigger than your baby is)
Socks with rattles/bells in them (ie, when they kick the rattle goes)
Some kind of touch/sensory play mat or one of those stand things with toys hanging off them
A toy that has some kind of symbolic value (eg, first football in family's team colours, high quality copy of your favorite picture book, first toy musical instrument if one of you play, etc)


The thing here is that he's not going to interact with it straight away so you can either get something he can play with anytime before next Christmas/birthday, or something that will have lasting value for several years, or even longer term that can be handed down to his children.