Here is the box for Round 4 of the Guess What Is in the Boxes Contest. The dimensions of the box are 9.5" x 13" x 4.5". It is an ordinary box I received a mail order in that was unfortunately a bit torn up, so it is wrapped in brown paper to enhance the structural integrity of the box.
My husband describes the heft as follows. "Weight approximately 1 pound. With vigorous shaking side to side you can feel movement of what seems to be something in the middle of the box. The weight seems evenly distributed."
I will continue accepting multiple guesses from entrants.
In wonderful news, @The_No_Show has posted a picture of his Certificate from Round 2. See? I really do send things to people, and I encourage winners to post pictures of their prizes and certificates, or send them to me and I will post them. ADDED LATER: Certificate Winner @toldorknown has posted a picture of his Certificate from Round 1!
The deadline for entries in Round 4 shall be 12 noon, EST, Tuesday, March 3. Please remember to tag your guesses #gwiitb (guess what is in the boxes).
The entrants and the guesses have been marvelous so far, and I am very happy to continue with the game. Good luck and happy guessing!