Hi Simone, we did just that, small family get together, and took Niamh out for the day. However, we did it the other way round, we had people over on her birthday and took her out at the weekend, but thats because the weekend after her birthday was Easter, so nobody was around to come for a family get together, so they all came over after work on the day of her birthday.
The idea of a small get together seems to be the most popular one.
Kas xx