Of common coin, I am the largest, though double my value is more than double my size.

trim your nails with careful snip, or race the seas, a sailing ship. One fits your hand, one rides the sea, what am I that both can be?

Glass screen shows the world, A box of light, stories told, Remote's power reigns.

A lion, a puppy, a castle in the sky. I can be anything, serenely floating by. White, grey, sometimes painted pink. What am I, do you think?

You cannot fathom how large I truly am. Still there are billions of me. How unfathomable is that?