Freaker Koozies are knit like socks and are emblazoned with everything from sports logos to drinking-centric memes. “Forget Me Not” makes your beer look like a prescription pill bottle. My personal favorite, “Shark Tube,” has a shark emerging from a Super Mario style green pipe. The koozies are designed to work on bottles but also work with cans if you tuck the neck in.
Freakers work well enough, but probably not as well as a traditional foam koozie — though note I didn’t do any scientific testing — and also do double duty at making it easy to figure out which bottle on the table belongs to whom. Great for grown-ups and kids alike!