Perhaps we should have a silicon ring for software engineers. And in case you are thinking "that would break too easily", well that's part of the point: to remind you that software can also be very easily broken, sometimes without even trying :)
EDIT: Its pointed out in a different post that "Engineer" as a protected term is not concrete and varies province to province while "Professional Engineer" or "P.Eng." is however protected.
You are supposed to submit work experience under supervision of another P. Eng. which are not very common place in our industry. I believe you can apply for exceptions to this rule though.
I personally haven't bothered following through with my P. Eng. status as I am not yet convinced it buys much in our profession (vs. the other fields of Engineering).
For someone not requiring it there are often provisions on each regulatory body's to get it down the line by providing cases of past work experience validated by a P.Eng. no matter when it happened.
I've wanted a cool physics ring for quite a while.