These small monster amigurumis are crocheted around a rattle made of a plastic egg from a Kinder Surprise chocolate egg filled with small glass beads. But you can always use fiberfill to stuff the body. Long antennae are perfect for grabbing with small hands.
Their size will be about 8,5 cm (3 1/3) tall, including the antennae, when crocheted with fingering weight cotton yarn and a 1,75 mm crochet hook.