Just a tip: don't feel ashamed if you can't do it. I know it looks fairly easy and it gets so frustrating and ridiculous and shameful when you repeatedly fail the move, but trust me... this move is much harder than it looks. Mainly because we tend to underestimate the speed with which the box bounces back. This move is very, very tricky and it can take you a lot of time to get it right.
Myself I can do it every time, but that doesn't mean everyone can. It's just that I am a pretty fast guy when it comes to Wonderland.
Back in the day I did it this way:
1. Peegue pushes box and steps away to the right.
2. Immediately switch to Stinky (behind box) while Peegue is sliding on ice. Step down and wait until the box comes back almost completely, then go to the right to bounce off Peegue.
3. Switch to Peegue and then step away.
4. Switch back to Stinky and get away from the rebounding box... for real this time.
That's how I did it my first time, there are other ways, if you're VERY quick, you can just get Peegue away the first time and Stinky misses the box by a tiny margin... I think, I don't remember all the exact ways I pulled it off later on. There are different ways to make this move, but they are all very tricky.
Good luck!