The official board game, playset and puzzles
In addition to this boardgame, with the matching puzzle.
This was a new find for me, from an eBay auction. I have never seen this boxed set of puzzles previously. The bottom two in this picture were available in other formats/sizes, but the top one (and the one from the box lid) is entirely new to me.
This puzzle differs from the ones above, in that it is a tray puzzle.
The 3D Playset
I'm not the kind of guy that throws around the word "rare" very often, but I think this fits the bill. I didn't even know it existed until Jim McNamara sent me these scans of the 2004 eBay auction for the Bobbsey Twins 3D playhouse. I would call this item "rare". The description says it is dated 1954. I think from the description that this contained the same items from the playset below this. VERY cool item, and I'm glad Jim sent it to me to post!
Jim recently sent me this listing--there is a Playhouse up for sale! If you want to fork out the high asking price, it can be yours =) http://www.hakes.com/item.asp?ListID=91&ItemNo=78540
The Play Box
Collector Jim McNamara was kind enough to share these pictures of this very hard-to-find "Play Box" which includes paper dolls and coloring/activity books. Far scarcer to have paper dolls that are uncut!