Some parties are built, not planned. This invitation leans all the way into that: the age is stacked out of chunky toy bricks in red, blue, yellow and green, the name is set in glossy block letters with a different primary colour on every character, and the whole composition sits inside a scalloped bracket frame with loose bricks scattered right to the edges of the sheet. It is loud in the way a child's birthday is loud — bright, high-contrast, and instantly readable from the other side of a classroom. Because the age is art rather than a typed figure, the same design carries a fourth, a sixth, an eighth or a tenth without changing character, which makes it a set a family can come back to. The guest page keeps building. The card is mounted on a studded base plate with a set-number tag clipped to the corner, and stud rules and brick seams mark the joins between sections. Details arrive as a build sheet — date, time, venue, reply-by, dress code and parking, each with its own hand-drawn instruction-booklet icon at a single stroke weight. The countdown is four bricks that stack themselves into place, each wearing two studs on top. The reply section is the finished model: a brick figure holds up the reply banner over a studded red rail, with one big response button underneath. Every panel is a white plate with a heavy ink outline and an offset drop shadow, so the type stays crisp over the busy brick field behind it. Bright, sturdy, and easy for a small guest to read on a parent's phone.