A toy called 「.s」 is like a combination of blocks and a puzzle where
you create a picture of dots by putting coloured “dot pin” into a
panel with lots of holes.
There is a kit you can use to create your favourite game character!
You can simulate this on a web to see how to do it and if you click on
a character, it will display a pattern of the picture so that you can
use it for cross-stitching as well.