There are so many ways to do dominoes....Here are a few tips.
You don't need to bleach, but when you do it is not to take away the dots, but to "rough up" the surface of the domino so it accepts your coloring medium choice better.
Try using a painted Lumiere mixed with Pearl Ex....then stamp in StazOn black for coloring without coloring.
You can also sponge StazOn color on for a softer look without smearing.
SU Scrapbooking Markers work wonderfully for coloring in.
Try using Krylon pens for edging - gives it a finished look.
Clear Emboss or use Crystal Effects for shine and sealing.
Hope this helps!
I've got several pics on my website -
www.geocities.com/stampwithjane
Jane Hignite
Jane's Card Sample Protector Packs
Now offering 6x6 Scrapbook Protector Packs!
www.geocities.com/stampwithjane/cardsamplersleeve