Holding up to 9,000 Rupees
The Tycoon Wallet is an item in Skyward Sword. It can hold a massive amount of 9,000 Rupees.
The Tycoon Wallet can be acquired by collecting all 80 Gratitude Crystals. Link can then take them to Batreaux, who awards him the Tycoon Wallet for making him a human.
Purchasing all three Extra Wallets from Beedle's Airshop allows Link to carry up to 9,900 Rupees.