In reality? You can't.
In imagination? Feel free to day dream.
In art? Be creative, dress up, wear makeup, be whatever you want to be.
In movies and other forms of media? You can stick your face on anything with the right software, some imagination and enough free time.
Beyond that, I'm not really sure you are asking a sane question.
nothing
Yes, either a Butterfly or a Moth.
A Caterpillar which will grow, cocoon and become a Butterfly
I believe that it the dog wanting to become a butterfly is basically representing people's aspirations to become something that they can never be.
Moth
a caterpillar.
they spin it so they can become a butterfly and being a butterfly is their way of browing up in life
There are no characteristics to tell if caterpillar is going to be a moth or butterfly. The best way to determine if it is a moth or butterfly is to look at the caterpillar's distinctive markings to see if you can make a species specific identification.
1937
a Caterpillar
yes
catapillers that turn into moths. A common misconception is that butterflies come from cocoons. They do not. Butterfly caterpillars shed their skin to become a chrysalis, which then sheds its exoskeleton to become a butterfly. The wrapping is silk around the caterpillar as a protective cocoon never occurs in butterfly larvae.