The coin from Super Mario 64 converted to 7 colors. Palettes 5-7 are used for the block coins, and the usual palettes for the sprite coins. No Tweaker/STEAR needed
Palettes for yellow, red, blue*, and yellow/silver sprite coins**
The sprite coins from blocks, enemies, and the silver p-switch
32x32 coin (Giant 1 Coin/Block, Giant 10/30/50 Coins, Star Coins). This is the original resolution of the SM64 coin so I included it for fun.
* I cannot find a blue coin block, I guess because it is easy to make your own coin that is worth 5 coins using Blockreator.
** Does not include winged red coin palette. Also, their palettes overwrite the palettes for the red and pink berries that Yoshi eats. Sorry!