What are the Koolickles made from? What is Korean cucumber kimchi flavored with? Are any of #1 or #2 red in color?
Pickled cucumber
Koolickles are a variety of pickled cucumber made with brine and red kool-aid. Korean cucumber kimchi is flavored with korean pepper powder. Korean pepper powder is red in color. 
Cucumber pickled in brine, vinegar, or other solution
Is pickled cucumber ever red?