Phone in the Bottle trick
Dynamo performs different versions of this trick, but the core is always the same. He borrows a bottle from one of the spectators, and a phone from another one. And then, in one swift movement, he somehow manages to get the phone inside the bottle. Someone then calls the number, to verify it is indeed the same phone.
This is the basic version of the trick:
First thing you have to pay attention to is the bottle. What exactly happens to the bottle after Dynamo gets ahold of it? For how long can you still see it? If you look at the video again, you will see that Dynamo puts it after his back immediately, while misdirecting the viewers with the cell phone. Also notice the guy standing behind Dynamo. He is clearly an accomplice who’s job is to take the bottle from Dynamo’s left hand while everyone is distracted by the phone and hand Dynamo another bottle, which already has an identical phone in it.
Dynamo then quickly brings the bottle from behind his back in a way that makes it impossible for the viewers to see if there is anything in it. He brings both hands together with great speed, and it seems as though he really pushed the phone through the glass and into the bottle. However, he merely had to push the phone in his right hand into the sleeve of his jacket (probably using a gimmick called Gecko, which pulls the phone into his sleeve using elastic bands). An identical phone is already in the bottle, and all he has to do now is reveal it to the audience.
This explanation presumes that the owner of the phone and the friend who afterwards calls his phone to confirm its identity are stooges. As far as we know, Dynamo never denied using stooges and this seems to be the most likely explanation. However, there is an alternative explanation that doesn’t involve stooges, but presumes that the bottle Dynamo is handed from the assistant behind him is just gimmicked in a way that enables him to actually push the phone in. However, this is much less likely than the first explanation.