Throw the dominoes

Throwing a row of dominoes is fun, but placing them is boring. This tool can place 8 dominoes in a row. By combining more of them (super glue), longer tools are possible. However, a short tool gives more flexibility when making curves. The placement procedure is repeated until the row is long enough. The tool has slots for two different domino sizes. The scad file is included, so other geometries (thickness, distance between dominoes) can be realized.
https://youtu.be/CR37sv8OMKs