Kmart offers the Star Wars Darth Vader Saucer Chair, model no. KK330192, for $9. Opt for in-store pickup to avoid the $90 oversized shipping charge. That's $9 under our expired mention from six days ago and the lowest price we've seen. (It's the best deal today by $15.) It measures 29" x 30" x 28".
Of note, Shop Your Way Rewards members will earn a Kmart credit with this purchase and may be eligible for additional credits and discounts.