How would a Finding Nemo play set work?

Would it be possible for a finding memo play set? I mean you couldn't extract the charcters into a toy box, as there would be no water and you can't have a swimming fish on the ground.

Finding memo is so popular, sometimes I fail to see why it's so acclaimed, it would sell loads. I would enjoy playing it, but the charcters just wouldn't work in toy box.

The bags that the fish in the dentist use?

Finding Nemo is going to have at least one power disc for toy box mode. Maybe that means there won't be a playable Nemo?

If a Finding Nemo play set were to happen though, I'm sure they'd be able to come up with something. Maybe you could actually swim around in the play set, and in toy box mode all of the fish characters would just awkwardly fly around in midair. Or maybe you would need to put large bodies of water in toy box mode to play as swimming characters.

Actually, that last idea would mean that it would be possible to make a Little Mermaid play set! Make it happen!

With the idea that these are only toys and not the real characters and that they really don't have to follow continuity within the toy box, they could come up with any number of possibilities to make underwater characters work. One idea that pops to mind is to simply have the characters move through the air as if the air were water. It would take a bit of suspension of belief for the gamer, but like I said before, these are only toys.