Often used to encode top-secret information, there are all kinds of ways to make and read invisible ink (like heat and lemon juice), but our Invisible Ink Thinking Putty uses ultraviolet light to mimic blue ink on a sheet of green paper. Write with the Glow Charger® and watch with wonder as your words evaporate into thin air.
Collection: GHOSTWRITERS| Colour: Black with Multi-Coloured Glitter | Glow: Red/Blue/Green | Texture: Soft
- Made in the USA from nontoxic silicone and never dries out
- Stretch it, bounce it, pop it, tear it, and sculpt it!
- Includes Glow Charger
- Includes 90g of Genuine Crazy Aaron’s Thinking Putty
- Crazy Aaron’s Thinking Putty is manufactured with the help of exceptional individuals of all abilities
Warning: Warning: UV emitted from this product. Avoid direct eye or skin contact with light. DO NOT aim light at people or pets. Choking Hazard. Contains Small Parts. No suitable for those who may try to ingest.