I once had the idea of tiling a wall with old ceramic PGA-package CPUs, with the gold lids on them. I still might, one day.
Hard to do unless:
1) You are made of money
2) You already have a fair size collection of these CPUs
3) Your household average height is that of the Yoda or hobbits
These processors are hard to come by nowadays. You can pay $20-30 each on ebay and they don't all look good, mostly because they are headed for gold extraction. I happen to be a collector. It's harder and harder to get those gold lids. If you want a pentium pro or other bad boys, be prepared to pay $40 each. I'd be interested in making a belt buckle with one of these if I know how to make belt buckles.
All very good points
Just a beer-idea really... awesome but impractical/impossible. But there IS a lot of e-waste out there, and a lot of people who don't know what they have. The other killer is that my ambition often outstrips my patience. I'd get one wall of the shithouse done and give up