Identify the recycled materials you wish to use for the sculpture's exterior. For example, if you want the outside of the sculpture to be made out of discarded dinner plates, it will give you an idea of what the core of the sculpture will need to be made of.
Identify pieces that can come together to form larger pieces. Similiar to making a puzzle, find pieces that have spatial congruency and can fit together in a coherent, three-dimensional manner.
Find a recycled material core that can attach to the sculpture's exterior. It should be stable. The core of the sculpture must be stronger than the exterior.
Identify a recycled material that can connect the exterior of the sculpture with the interior. If you're dealing with an exterior that is heavy, it will need to be strong enough to either attach or bond the two materials together. Super glue is an excellent choice for heavier materials. If you're working with softer, paper-based materials, make plaster out of recycled newspaper.
Construct the most crucial elements of the sculpture. This may mean simply fine-tuning a few of the pieces so that they can be assembled, or it could mean altering the shape of larger pieces so that they can be arranged into the desirable form. It could also meaning adding color by painting, or depth, by adding layers.
Attach the pieces of the sculpture together ensuring that they will not come disjointed or fall off. Heavier materials will need stronger connections. Super glue and nails should be considered, while tacks can be used for lighter objects.
Provide finishing touches to the sculpture. This can mean adding smaller, colorful elements to the exterior. Or it may mean cutting off or detracting awkward and out-of-place pieces.
Find a way and place to present the sculpture. While creating the sculpture allows for nearly unlimited creativity, the location and placement of it is often considered part of the overall design. For example, a sculpture made of old electronic parts could be displayed in a garden or a green, outdoor area to provide a contrast. The depth of meaning you wish to have with the display and sculpture is up to the artist.