I tried some origami I found for a rose that turns into a cube, mine didn't turn out very well, but I will make it eventually. The folding for the petals worked well for a cube shape, so I used that and just folded the end in the opposite direction so I could have it smooth on the outside.
1
Fold your paper in half, then fold each end to the center line.
2
Take the top right corner and fold it like the picture shows, and do the same with the bottom left.
3
Fold it down on the crease line where the picture shows.
4
It should now look like this. Repeat the same for the other side.
5
It should now look like this.
6
Flip it over and fold the flaps you see at the end over.
7
Flip it over again, and fold the ends up so you get a square shape like the picture shows.
Repeat these steps until you create 5 more.
8
To assemble it, just slip the ends in like the picture shows.
9
Just fit them together until it's finished. When it's done you can decorate it like normal dice, or like this one I wrote things I like to bake on it since I can't decide and others I use to decide also can't pick.