| 摘要 |
<p>A laminated cardboard drink coaster (1) having openable windows therein, the openable windows exposing otherwise hidden indicia capable of identifying the coaster (1) as a lucky coaster. In the preferred form the drink coaster (1) comprises two cardboard sheets (2, 3) laminated together each comprised of a substantially moisture absorbent cardboard sheet, and four openable windows exposing otherwise hidden identifiable indicia beneath a liftup flap (4) of the window. Each of the four openable windows has an uppermost liftup flap (4) comprising a part of the cardboard sheet defining an outer uppermost surface of the coaster (1) and each being located at a corner (7) of a quadrilateral shape of the coaster (1). Each of the windows is located at a different corner from the other windows. Each of the openable windows is defined by spaced apart perforations through the part of the cardboard sheet defining an outer uppermost surface of the coaster (1).</p> |
