Walmart offers the LEGO Ideas Women of NASA Building Kit for $15.99. (Amazon charges the same.) Choose in-store pickup to avoid the $5.99 shipping fee. That's $4 under our January mention and the lowest price we've seen. (It's the best deal now by $9.) It includes Nancy Grace Roman, Margaret Hamilton, Sally Ride, and Mae Jemison minifigures among displays representing the Hubble Space Telescope, Apollo Guidance Computer, and Space Shuttle Challenger.