When making jungle juice I like to use a wide and shallow cooler as opposed to a tall cooler.  It just makes it a whole lot easier to add ingredients, stir, taste test, serve, etc.

If you are looking for a cooler I would recommend this one:

I actually looked through a lot of reviews before buying this cooler myself (I bought it online because of the price).  It has great reviews, is cheap, and perfect for making jungle juice.  The cooler can hold 15 Gallons (more than enough for the recipes on this website).  Check it out here.