ALEX TOYS-Shrinky Dink Kits. Shrinky Dinks Kits are a fun and easy way to add your personal touch. These pre-cut plastic pieces are easy to color any way you want. There are a variety of Shrinky Dink Kits (each sold separately). Number of pieces vary by design. Conforms to ASTM D4236. Recommended for ages 5 and up. WARNING: Choking Hazard: not for children under 3. Imported.