Part of my Folding Polyhedra Pack! These dice print unfolded so they can be more balanced (although it's certainly not perfect yet). This also leads to nice surface finish and allows for using the multiple pass printing technique for multicolor with a single extruder. There's also a single color version. Though you can do a filament swap after the first couple of layers for the dots to be a second color.
Print. Snap into place, starting with the loop of four sides, then the remaining two opposite sides.
I found these to hold together really well printed with MatterHackers PRO PLA on my Anycubic i3 Mega, but it's not a bad idea to use a drop or two of cyanoacrylate (super glue) to be absolutely sure it doesn't come apart.