A sharp photo with good lighting and without distraction may make the difference in the sale of an item. If you do not want to invest in a cube, I found that using a flash and bouncing it off of the ceiling can remove a lot of the reflections.
Light shed, tent, cube for shooting still life without reflections.
Light shed, tent, cube for shooting still life without reflections. It comes in this very small holder.
Lantern in a cube.
Macro lens, close up for details.
Lantern in the tent-cube with little reflection. The background is pure white and with no distractions.
Lantern on a ordinary table without a flash. Notice the window reflection on the left.
Lantern on an ordinary table with flash bouncing off of the ceiling. Most of the reflections have diminished.
Lantern on a table top with a white paper towel inside to read the glass etching print better. A flash was used and bounced off of the ceiling. The black on the right side is a distraction that should be removed.