I tried those once when I was about 15, At 15 I would eat practically anything put in front of me but I'm not sure how anyone could eat that crap.
Maybe Mountain Dew, I used to drink it all the time, the last time I tried one it was just far too sweet. Haven't touched one in well over 10 years.
Along these lines...Cream Soda. My wife had me pick some up for "kid reward" type stuff when we were hunkered down over Christmas. Kids didn't much care for it (they're A&W Root Beer fans), so I said why not and gave one a try. First sip was a good memory of childhood. Subsequent sips were more like, "yeah, now I remember why I quit drinking this stuff." Way too sweet.