There's a little smoke and mirrors taking place with the scene in the film.
Of course the original prop, didn't dispense shaving cream; they were using a real can of the stuff.
This seems to confuse a number of people.
The scene simply cuts between the real can and the hero prop which features a flat bottom. It's not at all uncommon for multiple pieces to be used in a shot like this.
They're of course pretending the can is threaded at the base too as Nerdy fakes 'unscrewing' it. The faux threads are present on the original and on every replica out there.
It's of course impossible to thread the walls of a shaving cream so the o-ring does serve the purpose of holding the can in place.
As for comparing the props, nicksdad makes a fine replica, simple as that. He's put his own spin on the bottom which makes it unique. My hat goes off to anyone who tackles such an amazing piece. Again, I say, well done. :thumbsup
-Rylo
NOTE: I use high quality aluminum on all my props which gives them a little extra heft and a brighter finish when compared to others, that's all. One more note about the flat bottom. Nobody is guessing the bottom is flat. The hero prop a number of us inspected about 10 years ago was indeed flat on the bottom. So, unless there was more than one hero prop and they had different bottoms, this was settled a long time ago. I mean, anything is possible, but the hero we looked at was flat all day long. Either way, I was proud to see one of mine pop up in the bluray.
Thanks for the kind words!
I am pretty sure Rylo is correct. I noticed it last time i was looking at screen shots of the scene when he is given the can.