Yes a spirit animal can be everyday things.Finding your spirit animal can take either no time at all to a long time to find.Some people meditate,others use spells or ask there Gods/Goddesses for a sign and some people just take a trek through nature and some of them will find there animals like that.
It is best not to have a particular animal in mind when trying to find your spirit animal since you may end up being disappointed.Your spirit animal usually has the same character traits you have.I thought mine would be a dog or a cat or something because those were the creatures I liked but they did not match my personality.
You cannot find out your spirit animal from an online quiz but hey I did find one website that came pretty close,I don't know if it was by coincidence.The site told me my spirit animal was a butterfly.I was skeptical so I kept meditating and praying for signs,I even tried a spell. Finally I went to my fathers house and In my room there was a lot of moths in there.
I was positive that was my spirit animal when I heard of its traits and saw how its personality matched mine so well.
When I went to my mothers house my cat was chasing something,I don't usually check to see what poor creature she after but I did this time and there it was a big light brown moth perched on my curtain,i am usually afraid of insects but this time there was no fear I just laughed at my cat moved her aside and opened the door for it to fly away.
Hope that helps!