Charlie Naysmith, 8, found the delightful souvenir while walking along a beach near Bournemouth, UK.
Whale sick, known as ambergris, is traditionally used by perfume makers to prolong the scent of perfume.
Its rarity means that it can fetch prices of up to $10,000 a pound.
Before you all start pouring your Chanel No. 5 down the toilet, you'll be pleased to learn that the substance is usually avoided by manufacturers because of its negative association with the whaling industry.
Guess the cosmetic industry finally developed a gill-ty conscience.
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Whale, whale, whale, look what we have here...