Here Is my submission i chose the combo of light green and grey and also used a nice slightly playful font. I used a claw mark as the symbol as the others seem to be usin paw marks which dont really stand for claws. I also have the word claw to have a slight seperation in colour to show law. I got the shape of the rounded square from the way the icons appear on the iPhone Menu.
Any queries or ideas on colours or variations dont hesitate to contact me.
Yours John