That is how your soft dice would look like, you can have them with the conventional dots or colors to help teach toddlers.
You can reuse any piece of cloth, preferably white for ease of coloring. I have used 4 cms by 4 cms for each of the squares. Use a pattern like above, keep a small margin of 0.5 cm and cut the rest off. Keep aside the pieces for stuffing
Start stitching along the lines, this is how the first line would look like after stitching
Remember to leave out one square as you stitch for the stuffing to go in, this is how your dice will look like now.
I have added small square cardboard pieces on all sides, top and bottom for the dice to retain its shape.
Continue stuffing the dice with any cloth/poly filling, top it with the square piece of cardboard, and stitch the sides as well.
You are ready to add details to the dice, dots or colors kids are sure to love them.