suavivity sends this in this possible "Easter Egg" in Episode II:

Hey guys, I haven't seen anything posted about this, so I figured I'd send it in. I looked throughout the entire film for a "1138" and I think I saw it once, but it was very hard to see. When Jango is flying in the Slave I, above his right shoulder on the bar that makes up his seat is a little symbol that looks an awful lot like it could be the number 1138. It looks kinda like the number on the back of the droid in Ep 1, not a number, but the reverse outline of it if you can get what I mean. just thought I'd let ya all know and see what you think. thanks.

Jedi Flaco also sends this in:

Regarding 1138, it was spotted on the back of a clone trooper in the final battle, it can be easily missed due to all the chaos going on in that scene. Something to look for in your next viewings of the movie!

Indeed it is!