Algodoo

here's a short vid of it:
vid might not work short after i posted it here, cuz it's still being processed...

I suggest you to give a greater friction to the cap, so it doesnt gets loose when you tip the bottle, but you can release it with a hard pull

Well. I did this about in 10 minutes so i didn't think anything else, only that the shape is correct..

There is few mistakes. For example: the cap is yellow I don'd know how i forgot that..

Like Meoiswa said: friction of the cap could be greater. But it holds everything inside if you turn the bottle on its side gently