4x4 layouts for O27

I am looking for 4x4 layouts for O27. I have checked Thor's site and he has many interesting ideas but none that are straight 4x4, only 4x3'6" (max), etc... I was hoping some folks here might have some layout examples in that size they may be willing to share.

Story: I was going to do a 12x4 but I ended up with a 4x8 table and a 4x4 instead due to size constraints. I had planned to bridge them but would now like to do two separate (possible join them later? Hmmmm?). It has to do with keeping a young boy happy and getting Dad a little 4x4 piece of real estate he can call his own, if you know what I mean.

Thanks!