first, the best theft proof bike is no bike! Walk, run, ride your public transit system!
onward!
My design is simple, attach the K10 TD System to your locked bike and would be thieves magically stay away.
This would work best with a real dog, but I suppose a realistic statue with electronics inside and sensors would work sometimes. A bear, lion or skunk may achieve similar effectiveness.
Best of all, it’s compatible with all existing bicycles!
-B