Braille Bricks is a remarkable idea for a toy for literacy and inclusion of blind children. In 2016, the idea of merging lego bricks with braille (for play and learning braille) was put out by Janete Oliveira in Brazil. Her idea hasn't landed on any funding yet, but it has gotten a lot of well-deserved attention. Maybe by the time you read this they will be in business and producing braille bricks for kids all over the Earth!
Company (in Brasil): www.braillebricks.com.br