You can visit the online Lego store and pick out any number of any colour of the plain (or any other) bricks that you want. https://shop.lego.com/en-CA/Pick-a-

You can visit the online Lego store and pick out any number of any colour of the plain (or any other) bricks that you want. https://shop.lego.com/en-CA/Pick-a-Brick https://shop.lego.com/en-CA/Pick-a-Brick There's a search filter. You can filter by colour and by name, for ex: 2x4