Deposit the indicated amount of Star Bits with the Bank Toad to unlock the corresponding item.

Glasses: 1,000 Star Bits.
Spear and shield: 2,000 Star Bits
Pickaxe: 4,000 Star Bits.
Diver Toad: 6,000 Star Bits.
Explorer Toad: 9,000 Star Bits.
The Perfect Run (Grandmaster Galaxy Daredevil Run): 9,999 Star Bits.