Of course the first thing that comes to mind for the prompt ‘bottle’  is something like this. Great-grandson, Parker, has been visiting and baby bottles are pretty easy to find here right now!

I had another idea too, I have a half-pint Shipman’s Dairy bottle filled with marbles and a couple of old glass soda bottles that have turned up. I am rather fond of them, all three are displayed in the sewing/computer room on a shelf.