U can try the bouncing chair of Fisher-Price, my daughter loves it very much and it becomes the only way I can get rid of holding her whole day.
It is a magic chair which can keep BB in a comfortable posture and the vibration, pictures and sounds can calm and keep my BB for almost an hour.
My BB used to request for holding her whole day except for the overnight sleeping. Now (afre 2 months) she enjoy herself in sitting the bouncing chair.
Since the chair is 2nd hand from my friend, I am not sure where she bought it, you can check Toysrus.