Get Much Plastic
You will need:
– Robotic Shovel
– Lighthouses (Optional, Very Recommended)
– Liquid Luck Potion (Optional)
To do:
– Place a bunch of Lighthouses in near Distance so that the effect multiplies
– Dig everything in the radius of the Lighthouses
The Robotic shovel can Dig out Plastic and much other things (Coins and Gems Included)
1 Lighthouse increase the items by 50%
And with the Liquid Luck Potion there is more chance to get rare items