Create a square t-shirt graphic design with the following concept:

Title: Invisible Sandwich
Slogan: Taste the Nothingness
Visual style: Minimalist line art with surreal empty space and subtle shadows
Mood: whimsical and slightly unsettling
Core concept prompt: A minimalist black and white line drawing of two hands holding an invisible sandwich with faint shadow outlines suggesting bread and filling, set against a plain white background

Hard constraints:
- Keep composition centered and shirt-print friendly.
- Use high-contrast, clear forms suitable for print.
- Any text must be large and easily readable.
- Exclude all forbidden elements: real brand logos, celebrity likenesses, political symbols, explicit imagery, tiny text
- Do not include real brand names/logos, celebrity likenesses, copyrighted characters, political campaign slogans, hateful content, or explicit content.

Output a clean standalone design graphic, no mockup, no watermark, no background scene.

Create a square t-shirt graphic design with the following concept:

Title: Invisible Sandwich
Slogan: Taste the Nothingness
Visual style: Minimalist line art with surreal empty space and subtle shadows
Mood: whimsical and slightly unsettling
Core concept prompt: A minimalist black and white line drawing of two hands holding an invisible sandwich with faint shadow outlines suggesting bread and filling, set against a plain white background

Hard constraints:
- Keep composition centered and shirt-print friendly.
- Use high-contrast, clear forms suitable for print.
- Any text must be large and easily readable.
- Exclude all forbidden elements: real brand logos, celebrity likenesses, political symbols, explicit imagery, tiny text
- Do not include real brand names/logos, celebrity likenesses, copyrighted characters, political campaign slogans, hateful content, or explicit content.

Output a clean standalone design graphic, no mockup, no watermark, no background scene.