1.   Enormous apples open to reveal singing heads inside, as smaller apples dance along ropes like bouncing musical notes.

2.   I try an unmarked door and it opens to reveal ... yes, stationery again.

3.   The curtain opened to reveal the grand prize.

4.   The door opened to reveal a gaunt, clean-shaven man.

5.   The wooden doll opened to reveal a smaller doll within.

6.   The lapels of his white jacket slide open to reveal his pink shirt.

7.   I try an unmarked door and it opens to reveal... yes, stationery again.

8.   Beyond is another door, which opens to reveal an ancient lavatory.

9.   A door on stage opens to reveal a figure, but not the one the surprise party-throwers are expecting.

10.   And the cave opened to reveal ... a confusing array of DVD video players.