That's an ugly feeling. I temporarily lost my Jim Burke MAP pen. I had gone to the doctor's office, and then to both Walgreens and Kmart to pick up some prescriptions and other odds and ends. I returned home just before noon, emptied my pockets and switched from pants to shorts. After my dinner I needed to complete an application and went for my pen, only it wasn't there with my pocket dump. I rechecked my pant pockets, no luck. I then checked inside my truck and all along my path to the house. Nothing. I figured I might have lost it in one of the stores either inside or outside while getting back in my truck. At the time I had recently had a hip replacement surgery and needed to lift/pull myself up to get in, but would start bending/squatting to sit down while partially out of the cab.
I figured it was already claimed at that point by a new lucky owner. I almost ordered another one, but I was kicking myself at losing a pen in which I had spent $150 on. So I held off a bit. Coincidentally, I had a Ti-bolt on the way and figured I would go it alone with that one and be more careful in the future.
A few days later I got a pleasant surprise. I use the plastic bags from the stores as little trash bags in one of my rooms, I hang it on the doorknob to my closest door. I had gone to throw some papers in the bag and turned to walk away when I thought I noticed something. For a second I thought my eyes were playing tricks on me, so I went back to look and damned if my lost pen wasn't clipped/torn into to the outside of the plastic bag - just hanging there. I didn't remember but at the time I left Kmart I must have had the pen in hand when I grabbed the bags, and once I got to my truck I placed everything in the passenger side without even realizing it.
Good luck with it though, I hope it turns up!