My take on a D8 as minimally as possible. Numbers are read by the number of segments on each side, so the "1" side has no lines through it.
Admittedly, it's harder to make this concept work the more sides there are, so this will probably be the largest one I finish.
Rolls quite well, though I like bigger dice for rolling, so feel free to scale for your own preferences.
You can print this with FDM, I just happened to have a Form2 where I designed this.