Keys 836 - 840 Return to the Found Objects

I'm still working my way through the paper keys from Template 2; somewhere in the middle of that project and the cook - keys project I found myself back making found object keys. Here are the results of that detour:

I found the glass egg for Key 839 on the boulevard in front of my house, the thick metal ring was on the road a few blocks away, and the swan comes from the front of a small glass box (the metal wings from that box are on Key 733).