Andy from Fixed Gear London is now selling the LockWhip tool with a leather case:

“This is a case made to fit your LockWhip™ tool, made from black leather this slip case protects the tool from whatever else you might have in your bag. Laser etched graphics on the side indicate which way to put your tool into the case and a cut out at the opening makes it easy to extract your tool.”

I’d be more concerned with protecting the other stuff in your bag from the tool dude!