Wiki Block by Better Block

Wikiblock: an open-source design library for building better blocks. 

This toolkit includes designs for benches, chairs, planters, stages, bus stops, beer garden fences, and kiosks. Design files can be downloaded for free and a CNC router can cut them out of a sheet of plywood. Most products can then be assembled without glue or nails, and used instantly to make a block better. 

From our Partners at Better Block