Lego 1x 30504 White Wedge, Plate 8 x 8 Cut Corne 7665 | eBay
LEGO Parts 30504 (2pcs) Wedge, Plate 8 x 8 Cut Corner Pick Color | eBay
LEGO Sets with Part 30504 Plate 8 x 8 without Corner, Wedge Cut
LEGO® 30504 4205347 - ToyPro
LEGO® 30504 6370384 - ToyPro
Amazon.com: Eske Kouri Gobricks GDS-700 8x8 Wedge Plates Compatible with Lego 30504 All Major Brick Brands Toys Building Blocks Technical Parts Assembles DIY (141 Dark Green(047),150 PCS) : Toys & Games