Zhaoyang5682 via eBay offers the Star Wars Darth Vader Silicone Mold for $2.97 with free shipping. That's tied with our expired mention from three days ago as the lowest total price we've seen. (It's also a current price low by $5.) These molds can be used to create ice cubes, candies, jellies, and chocolates.
Note: This item ships from China, with an estimated delivery time of two to six weeks.