To provide a coaster, remarkably improved in appearance and surely attracting public attention by moving an ornament in the interior of the coaster with the up and down movement of a container to make an irregular interesting change in design.
A thin plate-like ornament 5 and a liquid 4 are disposed between an upper surface part 2 and a lower surface part 3, whereby when the container 10 is placed on or lifted from it, with a change in shape of the upper surface part 2 on the upper side of the liquid 4, some of the liquid 4 goes to flow so that the ornament 5 is moved according to such flowing of the liquid. Thus, the positional relationship such as the position of the ornament 5 and the upper and lower overlapping is changed arbitrarily to make a change in design of the interior seen through the upper surface part 2 every time the container 10 is moved up and down, thereby remarkably improving the appearance to attract public attention.
AWA MIKIO
SANO KOICHI
