A display is missing from my inventory :(

[pop41us]

hey everyone..
More than a year ago I had this snowy display with girls and skateboards, and I haven't even noticed it's been missing from my inventory until now! Any idea how to get it back?

I'm afraid I might be missing other stuff I don't even know about :(

[nky1111]

snowboard display. it was a goal item and should be at the end of the list, with mall santa, thrift store, etc. isn't it? mine is there.