This whale/Narwhal is made with a chenille chunky yarn (size may vary by yarn and hook size. You can make it also in regular polyester yarn the size will be smaller, but still adorable.

Larger whale
Thicker chunk yarn (2 skeins Bernat Blanket Jumbo)
6-8 mm hook
18-24 mm eyes
Polyfil
Acrylic worsted weight yarn
Yarn needle

Medium (small) whale
1 ball Loops and Thread Sweet Snuggles Lite (MC)
4.5 mm hook (3mm for standard acrylic yarn)
14 mm (10 mm) safety eyes
Polyfill
Acrylic worsted weight yarn (Embroidery thread)
Yarn needle

Stitches used:
Single crochet, Half double crochet, Double crochet, increase and decrease.