I posted these here some years ago, but the recent What Did You Do On Your Layout thread about paving trolley tracks reminded me of these illoes I did a dozen or so years back in RailModeller.
The plans are based on actual street railways (mostly Philaelphia and Atlantic City).
Hopefully, they'll inspire you to have fun with that old 027 track, switches and such that you have knocking about...
Mitch