Buy something for her specifically. I was spoiled when having DD but I secretly loved the things for me, it made a change as everyone was obsessed with the baby. Clarins toning oil, smelly candle, nice changing bag etc.
For bubs, the things I loved the most were gifts from The Organic Baby Company. I got a CuddleDry towel, some cloth, felt wool balls, Fruggi muzzies etc.
My boss bought DD a personalised bracelet too to put away which she now wears, that was very special.
Wheelybug to put away? We had one of these too, sooo cool.
I always think something to put away is a nice idea.