Spy Labs Invisible Ink Pen and UV light Party Fun Nutcase is a classic Hanayama

Nutcase is a classic Hanayama trick—easy to underestimate

making it fun for solo challenges or competitive play with friends and family

Includes 58 playing cards

Designed to keep little hands busy and imaginations flowing

long-lasting use across many play-cleaning sessions

Spy Labs Invisible Ink Pen and UV light Party Fun Nutcase is a classic HanayamaSpy Labs Invisible Ink Pen and UV Light Thames & Kosmos Designed for junior spies aged 8 years and up, making secret communication fun and interactive. Write hidden messages that remain invisible until revealed with the built in UV light. Encourages creativity, problem solving, and spy roleplay, turning ordinary notes into top secret missions. Compact and portable, making it easy to carry for spy adventures anywhere. Perfect for mystery games, escape