Again, thanks for the kind words, folks.
We were picking up our daughter at school last week when I came across an old broken bike pedal. I figured I could add reflectors to the sign... style AND safety!
The first step was to disassemble the pedal. I ground off the peened ends of the grips, put the pedal in the vise and tapped it with a hammer. That did the job. And now I had some rivets to remove.
I ground off the backs of the rivets...
... and went back to the vise to tap them out with a punch (bad photo).
Now all the parts were separate.
A little measuring and a couple of holes...
... for the #4 x 1/2" button head hex screws I would use.