The Nano Arm concept sounds innovative and could definitely appeal to a broad audience. The idea of designing a device for "lazy people" could be broadened to include those with mobility issues, elderly users, or anyone who struggles to reach for items. This could enhance the marketability of the Nano Arm.Lightweight materials will be essential for ease of use, and a compact design will make it more practical for everyday tasks. A sleek, modern aesthetic could also appeal to a broader audience. I recommend they draw diagrams at the end or before the prototype that outlines how to use the Nano Arm, like a small storyboard or 3 frame showing how it extends, how it grips, and how it releases. 

Leading questions for direction (to help enhance the design/concept)

Concept/shape

• Who is the primary target audience for the Nano Arm (e.g., elderly, busy professionals, people with disabilities)?
• What specific tasks do you envision users needing assistance with, and how can the Nano Arm address these needs?

Functionality 

• What length and weight should the arm be to balance usability and portability?
• How will users control the arm? Would a pull-string mechanism be sufficient, or should you explore other control methods?
• What safety mechanisms will be integrated to prevent injury or damage to items being grabbed? Highlight a reliable gripping mechanism that ensures items won’t slip or drop when extended.
• How will you ensure the arm is stable and secure when extended to reach for items?
• What materials will you use to ensure the arm is lightweight yet durable?
• What features or benefits will be emphasized to attract potential users? Think of Interchangeable Attachments, where you offer various attachments (e.g., claw for grabbing, brush for cleaning, or a small scoop) that can be easily swapped out based on user needs.
• Maybe add Voice Activation: consider incorporating voice commands to extend or retract the arm, enhancing convenience.
• Consider features like LED lights for visibility in low-light conditions

These resources will be important for them 

• https://sek.nuvustudio.com/posts/1013031-mechanisms
• https://sek.nuvustudio.com/projects/114402-07-low-fidelity-prototyping-wearable-cardboard-mock-ups/tabs/134119-example