ThinkGeek offers the Star Wars Floor-Standing Lightsaber Lamp in several styles (Kylo Ren pictured) for $99.99 with free shipping. Plus, you can score this Star Wars 40th Anniversary Shopping Tote for free via coupon code "ANH40". (You'll need to add it to your cart.) Combined, that's a $68 savings and the lowest price we could find. The lamp stands 68" tall and includes a remote to control brightness.
ThinkGeek offers the Star Wars C-3PO Desktop Accent Lamp for $9.99 plus $5.95 for shipping. That's $30 off list and the lowest price we could find. It measures 12" x 5" and takes a 25-watt incandescent or 13-watt CFL bulb (not included.)