i make sprinkles from support material to avoid waste here's the molds and files I use for commonly sprinkled foods (hagelslag, fairy bread, donuts, etc)
TIPS:
put any type of oil in the mold b4 putting clay in the mold or else you cant remove when its dry (i use air dry clay)
all molds are the same you dont have to print them twice just reuse the mold for the other half