From what I have researched so far about sustainability on my category, it started when people started producing organic coffee but I am not sure if this information is accurate. It is something that I came across. Materials that were used to make a coffee table were logs, plexiglass, natural bamboo, and etc. The image below is one example of a Eco-friendly coffee table since it is using a log that was discarded and applying recycled wood for the legs. Another sustainable object that exists is the on below the log coffee table, it has a growing grass on top of the table.
Images from google