This campaign is going strong—thanks in large part to the Super League of Science, which has brought in far more eyes than I could have reached alone. I had planned a $3,500 stretch goal, and we’re already closing in! Time to start planning.

For the stretch goal, we’re adding a vehicle pin all on its own. We’d like your input on which one to make. Many of these already exist as stickers and some we have never produced in any format, but any winner would need to be redrawn and simplified for enamel pin production.

Check out the attached poll to vote. If you like more than one, mention it in the comments. Remember: this series is for crewed missions only—so no Mars Rovers, Voyager, or other robotic spacecraft this time.