Pressure Effect

The Pressure Effect pads:

Build the Blindness pad:
An End Stone block with a gold pressure plate above
[Effect: Blindness]

Build the Nausea pad:
A Dry Sponge block with a gold pressure plate above
[Effect: Nausea]

Build the Regeneration pad:
A Diamond Block with a gold pressure plate above
[Effect: Regeneration]

Build the Poison pad:
A Lapis Lazuli block with a gold pressure plate above
[Effect: Poison]

Build the Strength pad:
A Slime block with a gold pressure plate above
[Effect: Strength]

Build the Blindness + Nausea pad:
A Coal block with a gold pressure plate above
[Effect: Blindness and Nausea]

Build the Invisibility pad:
An Obsidian block with a gold pressure plate above
[Effect: Invisibility]

Build the Slowness pad:
A Bone block with a gold pressure plate above
[Effect: Slowness]

Build the Levitation pad:
A Melon block with a gold pressure plate above
[Effect: Levitation]

Build the Speed pad:
A Quartz block with a gold pressure plate above
[Effect: Speed]

Build the Glowing pad:
An Emerald block with a gold pressure plate above
[Effect: Glowing]

Build the Night Vision pad:
A Bedrock block with a gold pressure plate above
[Effect: Night Vision]

Build the Weakness pad:
A Cobweb block with a gold pressure plate above
[Effect: Weakness]

Added in update (2.0):

Build the Mining Fatigue pad:
A Crying Obsidian block with a gold pressure plate above
[Effect: Mining Fatigue]

Build the Haste pad:
A Gold Block with a gold pressure plate above
[Effect: Haste]

Build the Jump Boost pad:
A Hay Block with a gold pressure plate above
[Effect: Jump Boost]

Build the Resistance pad:
An Iron Block with a gold pressure plate above
[Effect: Resistance]

Build the Fire Resistance pad:
A Magma Block with a gold pressure plate above
[Effect: Fire Resistance]

Build the Water Breathing pad:
A Prismarine block with a gold pressure plate above
[Effect: Water Breathing]

Build the Instant Health pad:
A Redstone Block with a gold pressure plate above
[Effect: Instant Health]

Build the Instant Damage pad:
A Netherrack block with a gold pressure plate above
[Effect: Instant Damage]

Build the Absorption pad:
A Purpur Block with a gold pressure plate above
[Effect: Absorption]

Build the Saturation pad:
A Dried Kelp Block with a gold pressure plate above
[Effect: Saturation]

Build the Luck pad:
A Gold Ore block with a gold pressure plate above
[Effect: Luck]

Build the Unluck pad:
A Gravel block with a gold pressure plate above
[Effect: Unluck]

Build the Slow Falling pad:
A White Wool block with a gold pressure plate above
[Effect: Slow Falling]

Build the Conduit Power pad:
A dark prismarine block with a gold pressure plate above
[Effect: Conduit Power]

Build the Dolphins Grace pad:
A Prismarine Bricks block with a gold pressure plte above
[Effect: Dolphins Grace]

Build the Hero of the Village pad:
A Barrel block with a gold pressure plate above
[Effect: Hero of the Village]

Build the Darkness pad:
A Sculk block with a gold pressure plate above
[Effect: Darkness]

Build the Wither pad:
A Wither Blackstone block with a gold pressure plate above
[Effect: Wither]

Build the Health Boost pad:
An Raw Gold block with a gold pressure plate above
[Effect: Health Boost]

Build the Random Effect pad:
A Sea Lantern block with a gold pressure plate above
[Effect: Random Effect!]