Inspired by the success of the fusible alloy clutch utilized in the digitally reconfigurable surface actuation system, we have been looking into the possibility of abstracting this concept into three dimensions, using fusible alloy to attach spheres or other particles together. In a simple case this involves plating micro-milli spheres (metal, plastic, glass, etc.) in a solder wetting material (tin, silver, gold, copper, etc.) and then plating that coating with a low temperature solder alloy so that it can be reversibly �sintered� to adjacent particles. In a more complex case, particles would have internal electronics that turn on or off (by heating) bond plates, resulting in a more �atom-like� particle that could self-assemble or self-disassemble.