MineFactory Reloaded Tools

Plastic Armor

Plastic Sheets Plastic Sheets Crafting Arrow Plastic Armor
Plastic Sheets Plastic Sheets Plastic Sheets
Plastic Sheets Plastic Sheets Plastic Sheets

Generally weaker than Iron Armor at least. I haven't compared it to Muddy Armor or Leather Armor.

Sunglasses

Crafting Arrow Sunglasses
Black Stained Glass Pane Plastic Sheets Black Stained Glass Pane
Plastic Sheets Plastic Sheets

Wear this in your Helmet slot. Increases your cool factor by 50%.

Plastic Bag (x3)

String Plastic Sheets String Crafting Arrow Plastic Bag
Plastic Sheets Plastic Sheets
Plastic Sheets Plastic Sheets Plastic Sheets

From the MineFactory Reloaded Mod. Allows you to hold items just like other backpacks, however the Plastic Bag's capacity is much smaller.