Britvic Drench: “The Clever Hamsters” [00:60]# A couple of endearing rodents are on hand in this spot to show us how healthy Britvic mineral water can be. In a jazz band by the name of “The Clever Hamsters,” four hamsters put on a stunning performance from inside their cage. Naturally, the water in their drinks dispenser is Britvic Drench. Super: “Perform at our best. Stay drenched.”