anyone have any ideas on how to make a plastic champagne glass look like it has champagne in it?
You could use piping gel that has been colored to look like its champagne. Piping Gel has bubbles in it too so, it might work for the look yr going for.
Jello made with club soda?
I ended up dabbing the inside of the glass with gold luster dust and putting several small strawberries in the glass. Turned out great. Next time I will definately try the piping gel.