end 66 would be clamped onto rigid rod 20 upon turning ring 70 in the opposite direction the free end 66 can be unclamped it should be noted that other types of mechanical components parts means etc may also be used to mount the support assembly 34 on rod 20 in operation the locking ring 70 is kept somewhat loose such that container support assembly 34 can rotate horizontally a complete revolution about vertical axis 71 of rod 20 as shown by arrows x and y in fig1 and 2 respectively fig6 7 disclose another embodiment of the present invention which is not self standing but is suitable for mounting to a support structure such as a crib cb or the like in this embodiment parts or components that are similar to the first embodiment are designated with the same reference numerals the apparatus aa shown in fig6 and 7 is similar to the first embodiment with the exception that the lower support assembly is slightly different in particular a support pole 78 is mounted to a conventional clamping device 80 rod 20 is telescopically received in pole 78 and its relative position and effective length can be varied by actuating locking knob 84 the clamping device 80 includes laterally spaced parallel plates.