Just posted a new article on my website ( http://www.thortrains.net ) that includes a set of 12 mini layout done in several scales: HOI, EZ Track HO, N, G / #1, Tubular O, Tubular O27, Realtax, Atlas O, TT and Standard Gauge. These are small enough for the tinyest spaces. I have also done some 3D drawings for the O layouts to show how they might be treated with scenery. They are at:
http://www.thortrains.net/trackplan/minipdex.html
For those unfamiliarwith my site, there are hundreds of original track plans posted[:)] there.
Happy railroading!
Thor