To form a vase into free design by boring a hole at the rear part of a base plate rather than the central part, erecting and supporting the vase while utilizing a cylindrical bar fitted into this hole.

The hole through a base plate 1 is formed at the rear part of the base plate 1 rather than the center desirably while being stepped and after the lower end part of a cylindrical bar 5 is fitted into this hole, this cylindrical bar 5 is erected and supported by screwing a bolt. On the other hand, a vertically rising-up planar area 22 is formed at the rear part of a vase 24, and a supporting plate 18 perpendicularly rising up from this planar area 22 is fitted to this planar area and horizontally extended. Then, a downward semicylindrical recessed part 14 is formed at the lower part of this supporting plate 18, the head part of the cylindrical bar 5 is fitted into this recessed part 14 and the low-stability vase 24 imaging shell, for example, is supported in rising state.