1. Go to the local hardware store, and buy a rattle can of spray paint that's about the color of your bike.
2. Do minimal surface prep and spray spots on the bike, as though you were trying to keep the bike from rusting. Overspray so there are visible drips, then wipe the drips when they're halfway hard.
If uglification works in your area (and, as noted many times above, that's doubtful), this should work. Give it a few months and the overspray should start flaking off. If you ever want to look at the bike without shuddering, acetone should take the cheap paint off.