And in terms of controlling quality, there definitely isn't much...
In some cases, that goes for safety as well. My wife (a EE) noticed that there are a lot of sellers on Etsy selling jewelry made from recycled printed circuit boards (earrings, necklaces, bracelets, etc). Unfortunately, a lot of the sellers don't know that PCBs are full of heavy metals that should not be exposed to the skin without some sort of varnish coating. Especially since some sellers like to remove components and sand the boards down so they look cooler.
In some cases, that goes for safety as well. My wife (a EE) noticed that there are a lot of sellers on Etsy selling jewelry made from recycled printed circuit boards (earrings, necklaces, bracelets, etc). Unfortunately, a lot of the sellers don't know that PCBs are full of heavy metals that should not be exposed to the skin without some sort of varnish coating. Especially since some sellers like to remove components and sand the boards down so they look cooler.
Lead poisoning FTW!