I need a logo.

Need a logo for 'Overt'. The letter 'O' is going to be mainly used from the logo for thumbnails, etc so I'd like more focus concentrated on that part. I want a cut-off in the 'O' to show that it is 'open' which symbolises overtness. I prefer the cut-off point to be at either the bottom or side of the 'O' so it does not look like the letter U. I'd like a bubbly graffiti style logo if possible. Any other graffiti style is fine as long as the 'O' is focused on and the full logo is readable. The other letters apart from the 'O' need to be lower case. I don't have a particular scheme so any 2 matching colours should be fine.