シアノタイプ / オ・クレール・ド・ラ・リューヌ ジェコ

My kids were fascinated watching the paper turn blue under the sun—the reaction is almost instant on a bright day. The included patterns let them make clean, sharp silhouettes, which felt like real science.

The sunlight exposure part is so satisfying—watching the paper turn deep blue while the shapes stay white felt like magic. The opaque patterns are sturdy and easy to position, even for my seven-year-old. We're already on our second set.

The reaction when the paper turns blue in the sun still feels like a small magic trick every time. The opaque stencils are sturdy enough for little hands to reposition without tearing, though you do need a bright, direct light for the image to come out crisp. It's a lovely, screen-free way to spend