Using 4mm needles and double knit wool
Cast on 28sts in a brick colour
Knit 3 rows
Change to dark blue wool and starting with a knit row, work 11 rows in SS
(P2tog) rpt to end (14sts)
(K2tog) rpt to end (7sts)
B & T
Sew a cat button on to the hat using matching cotton.
Have a look here for the buttons
Sew a few little star sequins in the sky around your cat.
Finally, oversew the row ends and turn inside out.