I have been planning my run for quite some time now and am getting ready to put it up this week. We happened upon a trampoline off of freecycle a few weeks ago and the lady who gave it to us sent it to our home with with and extra mat. My DH came up with the idea today to use the second one on top of part of the run to offer shade for the chickens! I told him that was a great idea! Part of the run will be in the trees, but part will extend out into the open. That is where we will use that big, black, stretchy mat to cover the run. So if anyone has an extra trampoline mat, here's a great use for it! Just had to share and I will post pics as soon as it is done.