Here we go:

* Dental floss containers - He will go insane if he sees one lying around.
* Dental floss - He then loves to open them and pull out the floss and start flossing. He definitely didn't get that from me!
* IKEA nuts and bolts - He is obsessed with these.
* IKEA allen wrench aka hex key - He loves to grab these and try and jam them into every doorknob to see if it will unlock it. Speaking of which...
* Keys in general - He loves to put keys into locks and then open the door. One time he came across a random locked garage door and asked me to give him my keys so he could open it. I don't think he realizes how keys work.
* Acorns - Charlie loooves acorns. He picks them up off the sidewalk and then puts his favorites in our pockets. Sometimes I put my hands in my pockets, and there is an acorn. My heart always melts just a little bit. To me, acorns symbolize Charlie's love for mom and dad.

What are some weird things that your LO is obsessed with?