Amazon.com: Classic Blue Plates Bulk, Blue Plate 1x2, Building Plates Flat 100 Piece, Compatible with Lego Parts and Pieces: 1x2 Blue Plates(Color: Blue) : Tools & Home Improvement
LEGO part 3710 - Trans-Dark Blue Plate 1 x 4 at BrickScout
Amazon.com: LEGO Parts and Pieces: Blue (Bright Blue) 2x4 Plate x50 : Toys & Games
Blue Baseplate 10714 | Classic | Buy online at the Official LEGO® Shop US
LEGO Classic Blue Baseplate Square 32x32 Stud Foundation to Build, Play, and Display Brick Creations, Great for Ocean and Water Landscapes, 11025 - Walmart.com
2x6 Plate, Lego® Part Number 3795 Trans-Light Blue – Atlanta Brick Co
LEGO Blue Plate 1 x 4 with Towball Socket (Long with 2 Slots) (3183) | Brick Owl - LEGO Marketplace