He then produces Silks, Spring Flowers, Feather Flowers, Currency Notes, Garlands etc from the “empty” Tube.
After showing the tube empty, you could cap the ends of the tube with tissue paper, and rubber band the paper to form drum heads over the tube. Hold this right way before a candle or torch, and tube appears empty. Burst the paper, and make your production. If the ends were capped with flash paper, you would have a more dramatic impact, as paper goes off in a flash, then production is made.
These Ghost tubes have a leak proof load chamber. You can pour liquid into the “bottomless tube” which the audience has seen right through, and have it stay magically suspended in the tube. Pass a lit candle through the tube, then pour out the liquid. Use your imagination, and you could use these for many novel magic effects, besides the normal productions.