gigi, i got a great 'activity centre' from target. they stand up in it and the 'floor' bounces and makes sounds when the stamp and it has 3 different toys attached around the top. the chair also swivels 360degrees. it's great for just popping evie in while i do stuff - except now she's clued on to the fact that when i put her in it that i'm not giving her 100% attention so she protests a bit now.
It's a bright starts one, i got it for about $70 at 50% off, but they are always having sales on things like that.
Either way, might be something different for you to try to keep bilby amused!