M40 - Golden Axe
P30 - Golden Hoe
PKP - Golden Pickaxe
MP5 - Golden Shovel

AK-47 - Iron Axe
AK-47u - Iron Hoe
M16 - Iron Pickaxe
Remington - Iron Shovel

RPG - Stone Hoe
UMP 45 - Stone Pickaxe
SW1911 - Stone Shovel
FN Fal - Stone Axe

How to modify?
- Change the file names to the item you wish it to replace.
- Like: rename "golden_axe" to "wooden_hoe", and the wooden hoe will be the M40.