This improv game is in the following improv game categories:
The middle players are clay, or stone, and the outsiders are sculptors. Let each sculptor do something to his lump of clay, then make the sculptors rotate clockwise. Everyone now stands in front of someone else`s block of stone or lump of clay. Have them work some more on the sculpture and rotate again. Repeat till every player is in front of his original piece of stone again.
Then ask the sculptors to introduce their work, and give it a name.
Other thing to watch for is which players undo the work the previous artists made. The idea is to build art together, not to destroy previously done work in order to push your own ideas. Make this clear by asking the sculptors, when they`re in front of their original work again, to what extent the works still looks anything like what they started with.