Rallye Dash, re attaching the plastic pegs,,,

Finishing up the re new process on the rallye dash.

Concerning re attaching the plastic pegs that hold the lenses and the lenses centers in.
I have read posts where folks said they re melted the plastic peg with a soldering iron,
I am guessing that one would need to add a small amount of plastic to the existing peg ?

What kind of plastic does one use? Can someone add a few details on how to do this.

Although I have also considered putting a drop of plastic epoxy on the end to fashion a cap to the existing peg, see any issues with doing the assembly that way?

thanks