Circular Room

Designing a level map for a game idea I have and was wondering if the community knew of any examples of a circular room being created for RPG Maker ( any version) with a tileset that would support the type of walls needed for it. 

I am looking to create my own tile set for the game but could use a reference point for this. 

Thanks. 

There's a round room made to look like the inside of a tree in the DS tiles, but that's the only one I know of. The problem with round is that it takes a lot more tiles to make look right than normal, and even more so the bigger you make that circle. It's just something to be aware of.

Parralaxing it might be an option though. Make a big circle in Photoshop, set it as the parralax background, and add collision tiles for the walls in the editor.

Thanks for the suggestions