Hey! I play cricket as a hobby, we have to mark the boundary. And we use cones to mark it(http://www.rkme.com/wp-content/uploads/product/cricket/CPR-08.jpg) Having it in limited number results in confrontation whether it is out of boundary or not. I am looking for solution for you guys. According to me possible solution can be, connecting two cones with visible light. Which can be done using: 1. Sunlight reflecting 2. LED lights Unfortunately I am not physics pro, so don't know how to go ahead with that. I am open to other solutions too. I appreciate detailed plan on how we can connect two cricket boundary cones. waiting... Best Regards.