Lego 1x 2460 Light Bluish Gray Tile, Modified 2 x 2 with Pin 75290 | eBay
Amazon.com: Eske Kouri Gobricks GDS-932 Tile, Modified 2 x 2 with Pin Compatible with Lego 2460 All Major Brick Brands Toys Building Blocks Technical Parts Assembles DIY (212 Bright Light Blue(053),900 PCS) :
LEGO Part 2460 Tile, Modified 2 x 2 with Pin [White] (246001) | iBricktoys: LEGO shop guide and database
LEGO Dark Gray Tile 2 x 2 with Vertical Pin (2460) | Brick Owl - LEGO Marketplace