This is a six faces dice I created for my card game Boss Monster.
You can print each piece separately as I did and choose different colors for them. Place the faces and numbers face down on the plate and print everything without supports. Then just assemble the faces and numbers (you can force the number into the face by gently knock it with a small hammer for example) then glue them into the dice body.
Or, if you have a multi-material printer, you can just print them all at the same time with the colors you want.
If you don't have a 3D printer, you can buy them here:
Enjoy it! ;-)