Packaging/displaying device made from foldable blanks

A packaging and displaying device for an object, comprising:

• a main blank foldable into a housing;
• said housing including a bottom panel, two side panels extending upwardly from two opposite sides of said bottom panel, a back panel extending upwardly from said bottom panel and connected between said side panels, and a top panel connected to a top end of said back panel and extending above said bottom panel, said top, bottom and side panels cooperatively defining a housing space for an object, said top panel having a through hole extending through said top panel to receive and retain a top end of the object, said housing being open at a front side to display the object,
• wherein said main blank has a longitudinal main plate section, and two wing sections projecting transversely from two opposite sides of said main plate section, said main plate section and said wing sections forming a substantially T-shaped configuration, said wing sections being folded from said main plate section to form said side panels, respectively, said main plate section having a first region between said wing sections, and a second region connected to said first region, said first region forming said bottom panel, said second region being folded from said first region and forming said back and top panels.