My mall shop currently contains:
Ender Pearls - 1k per stack of 16.
Packed Ice - 1k per stack of 16.
Elytra - 40k each.
Diamond - 750 each.
Iron - 3k per stack of 64.
Smooth Stone - 500 per stack of 64.
It's at the far end from /warp mall, opposite SydBliss' shop. Come make me even richer!