Plastic Block

 is a block material in Build A Boat For Treasure. It was obtainable in the 2018 Easter event from a Green Egg. The material is extremely plain and has a slightly different tone compared to Metal when painted. Unlike metal, it does not have any scratches on it. It is often used for decoration on boats, or for builds that require lightweight materials. Completing the Cloud Quest (5 s) and Dragon Quest (5 s) awards a total of 10 s.

It was then made obtainable from the shop permanently, selling as a package of 50 Plastic Blocks for 325 Gold. This was changed recently, however, with it now selling as the same package of 50 Plastic Blocks but for 300 Gold.

Trivia

 * The texture material the block uses is actually "SmoothPlastic", and not Plastic.
 * When the Special Egg hatched, the block was put in the Shop, with a price of 250 Gold for every 25 blocks.
 * Its name first appeared during the Quests update.
 * Players used to get 25 with the Piston pack, but it was replaced as the  has its own pack.
 * Plastic is the lightest block in the game, weighing 0.001 balloons.