To give normal darts the damage potential lawn darts have you have to: 1: cut off part of the plastic tail so that the whole dart fits in a ~1m piece of PVC

To give normal darts the damage potential lawn darts have you have to: 1: cut off part of the plastic tail so that the whole dart fits in a ~1m piece of PVC electrical conduit 2: wrap electricians tape around the brass front so it fits snugly but not too tight in the same piece of pipe 3: put the dart, point forward, into the pipe 4: connect the back (or "breach") part of the pipe to a large foot-operated bellows as used to blow up dinghies. 5: aim the pipe at a brick wall 6: jump, or have you accomplice jump on the bellows 7: walk towards the wall and extract the dart from a brick into which it has embedded itself about 1.5 cm. Source: personal experience. We did not have lawn darts. We did not need them. Even at that age we were smart enough not to aim the pipe upwards to see how high the dart would go in the knowledge that it would eventually come back to ground level.