The "Red Stick" is what it actually is. It was just a red plastic stick the was released with the Pizza Lunchables back in the 1990's which is just like the one inside of Ritz's Handi-Snacks Cheese And Crackers. The purpose of this was for you to spread you sauce onto your crust more evenly. However, it was discontinued in the early 2000's. The reason behind this is unknown, but some have speculated that it could be everything from parents complaining about their kids swallowing it and potentially choking to environmental reasons. And believe it or not, there are some people that to THIS DAY are still mourning the loss of this red stick. Currently, there are no plans for it to return.
Lunchables Wiki