Handling leftover coins in Japan is a common traveler's challenge, but 2026 offers several smart solutions. The most popular is the "Pocket Change" kiosks found at major airports (Narita, Haneda) and hubs like Shibuya. These machines allow you to dump your mixed coins and convert the value into electronic money, such as Amazon gift cards, iTunes credit, or refills for your Suica/Pasmo transit cards. If you have 1-yen or 5-yen coins that vending machines won't accept, you can use them at convenience stores (Konbini) by feeding them into the automated payment machines at the counter. For a unique souvenir, use your 100-yen coins at Gachapon machines for high-quality collectible toys. Finally, most Japanese airports have "Unicef" or local charity donation boxes near the security gates specifically for travelers to offload their final remaining yen before departure.