Mart, powder tins that are meant to store gunpowder and what gunpowder was sold in, do have screw tops and very old ones are small screw tops. However, gunpowder tins also stand up. I have never seen a gunpowder tin that did not stand up nor have I ever seen any with side holes meant to (presumably) hold a wire bail handle.
Mario, the old blown glass ornaments that I am familiar with, are very thin glass and would weigh much less than a comparable tin cone.
JMO.