Construct a table decoration that takes up no space on the table!  Attach two pieces of Styrofoam packing material approx. 30” x 10” to either side of a 30” x 12” piece of plexiglass.  Decorate the Styrofoam with multi-colored tissue paper, cut-out tropical fish and underwater vegetation.  Arrange Bnai Yisroel from whatever little people you have on hand…touching them up where necessary for verisimilitude.  Hang above the table with ribbon and position a light above so everyone can see what’s going on or coming down, as the case may be.