The Galactic Throne is made to order from high-quality parts. It bears a close resemblance to Palpatine's throne. The creators call this a "functional art piece" and it was designed by Richard Riley and Tom Spina. It's fabricated from custom-welded metal.
It's available from Tom Spina Designs for $5500. That's right. The only consolation is that it's a limited edition of only 5 chairs.