Here in Europe, a popular piece of furniture for babies is the Doomoo Seat. This smart Dutch design is a bean bag which can be used for newborns, but also for older kids. It has two interchangeable upper layers: one with a safety harness (for babies), and one without (for kids).
We bought one when Norah was a baby, and it has given us a lot of pleasure and convenience. Norah is now passing on her Doomoo Seat to Ava, but as the last thing we want is to give her the feeling that she has to give up certain things for her little sister, I made Norah a similar bean bag in the week before Ava was born.