Pre writing exercise stamp for sand or playdough

I made these for my kid to practice pre-writing strokes without a pencil, just press them into magic sand or playdough.

Boost Me Got more stamps! This set has three shapes: a spiral, an infinity/figure-8 loop, and a swirl arrow. Each stamp is a round disc so little hands can hold it flat and press down evenly, and the raised lines leave a clean impression you can trace over with a finger afterward. Great for toddlers and preschoolers working on hand strength, pincer grip, and the curvy motions that show up later in handwriting. Also just fun to squish into playdough on its own.