Instant Scenery Kit: Mud & Water Bundle

This kit comes with everything you need to create realistic weathering on your scale models and is perfect for tanks, infantry, light vehicles, bases, terrain, dioramas... and anything else you might want to add simulated mud to.

The kit includes :
Weathering Pigment: Dark Earth
Weathering Pigment: Terracotta Earth
Weathering Pigment: Clay Brown
Modeling Plaster (approx. 2g)
Fine Grain Sand (approx. 5g)
"Realistic Water" (2 oz. dropper bottle

For a quick look at using these materials to create realistic mud weathering on your models check out this easy method from the Secret Weapon "Tips & Tutorials" section:
Mud & Water the Secret Weapon Way