I did a full set of LED's in my FT and it looks great in my opinion, not sure what you mean by container; cointaker typo? Got my led's from marco. I used some colored led's in the backglass to make certain parts of the scene pop out more. Blue bulb behind the lightning bolt in the top left looks really cool, like its actually flashing. As well as adding more green behind the Fish Tales logo and the fish and adding some bulbs to certain parts where the water looks like its splashing, bubbling etc. I can get some pictures/video of it up in a few days.
Also, I heard somewhere that the lighted button in the reel plunger is actually on prototype cabinets only. Anyone know if there is truth to that? If there is a mod to light the button, I'd definitely be interested.
edit - Thanks for the cast button link.