Fill the spare time by drawing..
Many myths depicting everyone's imagination of supernatural beings are they have a pair of wings. Probably because mystical fantasies depend on everyone's psychology. Basically the wing symbolizes freedom. The value of freedom that is not bound by any rules. So is not suprising that physical feature of mystical winged creatures make many artists who change the fantasy that makes everyone afraid to be beautiful works that make many people fascinated.
And I myself try to do the same while eliminating boredom ..hehe !