Some time ago I was on weeked event where was a very VERY large table with KAPLA blocks - simply all the same wooden blocs - planks.
Nothing special, yah ?
Well, there is no RULES - only your imagination (and sometimes gravity :-) )
It's not a toy, it's an art form
The choice of architects, engineers, designers, artists and teachers of all ages - professionals to preschoolers
Please look at and comment my other inspirations, I am actually preparing for Ph.D. and you comments or build on hints are very valuable for me: /profiles/dysgenio/contributions.html