While walking Milo this morning we passed several groups of disc golfers wondering around in the scrub looking for lost discs. I suggested to Milo that perhaps the disc's should come with an embedded bluetooth beacon. He thought the idea was a good one, but that it would cut into his flushing work. I reminded him that, here, on this walk, there are always lacrosse balls to find.
Later it occurred to me that if the discs just chirped that would be sufficient.