| 12 Historic Robotic Space Exploration Stickers | bracken-observatory.com | 38.5 USD | 48 USD | −19.8% |
| Giant Leaps in Space Sticker Set | bracken-observatory.com | 14.4 USD | 16 USD | −10% |
| First on Mars: Viking Lander 50th Anniversary Screen Print (20"x36") | bracken-observatory.com | 65 USD | — | — |
| Apollo: NASA Moon Missions Board Game (Strategy Edition) | bracken-observatory.com | 32 USD | — | — |
| Apollo Mission T-Shirt – The Iconic Visor Reflection (Women's) | bracken-observatory.com | 29 USD | — | — |
| Cassini T-shirt for Women | bracken-observatory.com | 28 USD | — | — |
| Voyager T-shirt for Women | bracken-observatory.com | 27 USD | — | — |
| Apollo Mission T-Shirt – The Iconic Visor Reflection (Men's) | bracken-observatory.com | 27 USD | — | — |
| Apollo Mission T-Shirt – The Iconic Visor Reflection (Unisex) | bracken-observatory.com | 27 USD | — | — |
| Cassini T-shirt for Men | bracken-observatory.com | 27 USD | — | — |
| Planetary Society Original Clipper Logo for Men | bracken-observatory.com | 27 USD | — | — |
| Voyager Mission T-Shirt – The "Grand Tour" Edition (Unisex) | bracken-observatory.com | 27 USD | — | — |
| Voyager Mission T-Shirt – The "Grand Tour" Edition - Men's | bracken-observatory.com | 27 USD | — | — |
| Planetary Adventures by Lou Friedman | bracken-observatory.com | 23 USD | — | — |
| Voyager Grand Tour Mug | bracken-observatory.com | 17 USD | — | — |
| Mars Science Mug | bracken-observatory.com | 15 USD | — | — |
| Cassini Enameled Pin - Historic Spacecraft Series | bracken-observatory.com | 10 USD | — | — |
| Sputnik Enameled Pin - Historic Spacecraft Series | bracken-observatory.com | 10 USD | — | — |
| New Horizons Enameled Pin - Historic Spacecraft Series | bracken-observatory.com | 10 USD | — | — |
| Mars Science Enameled Pin - Historic Spacecraft Series | bracken-observatory.com | 10 USD | — | — |
| Voyager Enameled Pin - Historic Spacecraft Series | bracken-observatory.com | 10 USD | — | — |
| First in Interstellar Space: Voyager Holographic Style Sticker | bracken-observatory.com | 7.5 USD | — | — |
| Viking Mission Patch from the Historic Robotic Spacecraft Series | bracken-observatory.com | 7 USD | — | — |
| Apollo LEM Vehicle Enameled Pin | bracken-observatory.com | 7 USD | — | — |
| Apollo Mission Patch - Giant Leaps in Space Series | bracken-observatory.com | 7 USD | — | — |
| Voyager Mission Patch from the Historic Robotic Spacecraft Series | bracken-observatory.com | 7 USD | — | — |
| Artemis Space Launch System (SLS) Sticker | bracken-observatory.com | 4.25 USD | — | — |