Related Clues:

• Cartridge contents
• Calligrapher's purchase
• Soy product
• Publicity, slangily
• Tattooing fluid
• -
• Printer's supply
• Rorschach material
• Calligraphy supply
• Squid's defense
• Cartridge contents, perhaps
• Squid's squirt
• Pen pal?
• Calligrapher's need
• Squirt from an octopus