Answer:
I am a lunch money thief
I move without wings Between silken string I leave as you find My substance behind.
Squeeze me and I cry tears as red as my flesh but my heart is made of stone.
By Moon or by Sun I shall be found. Yet I am undone if there's no light around.
Crooked as a rainbow and slick as a plate, ten thousand horses can't pull me straight. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.