The hole is TOO NARROW. If you use paper as funnel, there will not free channel for blowing.
...Okay.
< but...
BUT...
BUT...
I GAVE YOU A CLUE!!! D:
1) THE CAKE IS A LIE
2) IT'S A TERRIBLE CLUE.
Seriously, it's a terrible clue. We've done everything in our thoughtpower to use the items, only for you to reject them time and time again.
We've tried combining items, I tried using that strange tool, the metal box is seemingly useless, the rods...what, you want us to unscrew the lightbulbs and electrocute ourselves by placing the rods in their place?
The flashlight: Useless for now. The rubber tube, nothing.
That leaves us with 2 pieces of paper. Make a paper airplane?