We gave our oldest this Build Your Own Erupting Volcano set for his 7th birthday recently, and it was a huge, huge hit. What a like about it is that it was really a family activity and we spread it out over a couple weekends. The first weekend we built the volcano with the paper maché and then we let it dry over the week (the kids kept checking on it of course!). The second weekend we painted it, lacquered it, and then let it erupt! The anticipation had built up over the week, and it was so fun to watch the kids’ faces as it erupted.