Jet offers its members the Star Wars Death Star Planetarium
with free shipping
. That's tied with last month's mention as the lowest total price we've seen. (It's a current low by $4.) It features a table top Death Star planetarium, projector, and learning guide.
Note: At checkout, you'll be provided with the opportunity to waive the free return option, which further drops the price to $15.64. Plus, select payment methods bag additional percent-off discounts, as displayed at checkout. (For example, paying with a debit card cuts an extra 1.5% off.)