I would suggest that you use 2 or 3 different colors, but for the sake of time today I just did the one color.
The smaller the dowel, the tighter the curl. I cut a goove in my dowel on either end so I could wrap the ribbon through it and keep it secure.
FIRST, Preheat your oven to 275 degrees and line a baking sheet with foil. (We're cookin', sister)
Wrap your ribbon all the way down the dowel and secure at the ends. If you don't have slits in your dowel, use wooden clothes pins. (Obviously, plastic will melt.)
This dowel will only do one bow, so if you want to do two bows or multi-colored bows, you're going to need to wrap more dowels.
Bake at 275 for about 15-20 minutes. When you gently slide the ribbon off of the dowel, determine if the curls are tight enough. If they're loose, put them back in the oven for another few minutes.
When your curls are as tight as you want them, cut them about 3 to 4 inches long.
DON'T FORGET THE FRAY BLOCKER! You can purchase bottled Fray Check liquid, or use clear nail polish.
Then you'll need to bend a medium size piece of wire like this.