Seeed Studio has even more spare PCBs than we do. They’re donating some of them to PCB sculptor Steven Rodrig for his work (see above). If you’re Seeed’s 20,000th order, you’ll get one of Steven’s sculptures for free.
Soon Seeed will start selling extra PCBs too, just for the cost of shipping. Scrap PCBs are useful for soldering practice, as well as art.