Checking your hidden stash at home is a must as you never know what treasures are hiding there. Whether it's old Pokemon cards or rare coins , certain things can bag you an absolute fortune without realising. Now over on TikTok , user @CoinCollectingWizard revealed three specific designs you need to keep an eye on. From a London Olympics 2012 coin to a design from 2023 which has officially overtaken the Kew Gardens 50p, owning any of these pieces could guarantee you quite the jackpot. The clip