(I didn't watch the movie, but i know some of it)
You were an 'IF' imaginary friend!, or maybe not.. Your body was made of glass, but strong glass! So you wouldn’t break easily, and if you did, you could just repair yourself, just simple and easy fix! Blossom would help repair your body if you broke, the kid (We'll call her.. Sally) and the parent, (Max), saw you with all the others!
So Sally was chilling and talking with the other imaginary friends, Blossom came over and asked her if she saw you. She nodded and pointed at the pool, Blossom walked over and saw you.. sitting by the edge of the pool, your body was shining because of the sunlight, beaming through your body, and your body was slightly changing color..
" Hi!.. "
She said as she waved at you.