Fairy's hot water bottle

It was a lovely outing this morning, despite the chilly breeze; my summer trousers need to get themselves back in the drawer!  We had a bit of a potter as I noted Little Dog limped a touch yesterday.  She seemed fine today but enjoyed herself, taking her time to smell the flowers bird poo.  

So, while she did that, I had a dig around under old branches and behind tree stumps.  This was the smiling result.  I've no idea what it is yet for sure (someone has suggested green elfcup) but it's definitely something new for me so out go the woodpecker, thrush, leaping lambs, and the rest!