Preview of the Starblocks Interlocking Printable Brick Project - Set No 001, "Be Mine / Print Me" - Valentine's day inspired Candy Hearts with messages: Be Mine, Print Me, Miss You, Love You, and more. Yes, they actually work and yes, they are compatible with major brand bricks. If you've been disappointed by 3d printed bricks before, please give Starblocks a try, I think you'll be pleasantly surprised. I've been working on Starblocks for almost two years, there is a LOT more coming soon.