What is THIS bizarre creepy thing I found in the nesting box?

[Seslar]

First time trying to share pics here. And I've tried to add for pics and a video two ways - embedded and as a link. Sorry but these pics may be gross to some. And let me just say all hens are acting healthy as normal. That said, what is this thing I found in the nesting box? Thanks all! Five years with chickens, never seen this.

https://www.dropbox.com/s/4h446bcpfd3ztdu/2016-09-03 12.14.57.jpg?dl=0

https://www.dropbox.com/s/bx4krpezvylydjq/2016-09-03 12.21.35.jpg?dl=0

https://www.dropbox.com/s/i870vrt44zmrzzh/2016-09-03 12.27.48.jpg?dl=0

https://www.dropbox.com/s/4ghxggvfgycccz8/2016-09-03 19.21.03.mp4?dl=0

 

[Ravynscroft]

Looks like a lash egg... put lash egg in the search box and you should get some informative threads...