(TrendHunter.com) New Zealand-based artist Mike Hewson designs a public playground that is made up of 24 large bluestone boulders. At a first glance, it appears to look like furniture dollies and the boulders are... (TrendHunter.com) New Zealand-based artist Mike Hewson designs a public playground that is made up of 24 large bluestone boulders. At a first glance, it appears to look like furniture dollies and the boulders are...