Plastic from CO2 and plants, for example for LEGO - HIMS - University of Amsterdam
What is ABS Plastic? | How to use ABS Plastic. 3D Printing? Lego? - YouTube
Amazon.com: Fast Food Accessory Pack with Over 75 Custom Made Pieces - Compatible with Major Brick Brands - Fits Lego Minifigures (Figures NOT Included) : Toys & Games
Custom Design Torso Muscles - Etsy
I find your lack of abs disturbing' : r/lego
LEGO Classic 11018 Creative Ocean Fun ABS/Polycarbonate Multicolored 333 pc - Ace Hardware
Let's Get Nerdy About LEGO Plastic - BrickNerd - All things LEGO and the LEGO fan community
Review: LEGO 77013 Escape from the Lost Tomb - Jay's Brick Blog
Materials - Sustainability - LEGO.com
Understanding the ABS Plastic in LEGO
Will Legos go Bio? The Sustainable Future of 'Greener Toys'