That's great.
The bolts with the small washer have a double circle in the middle with the letters ELH inside the circle. The E and L are larger than the H. The bolt with the large washer has the number 23 in the middle of the bolt head. No circle, but three lines at the 9, 12 & 3 o'clock positions.
Re license plates, I don't have much. I have a personalized Calif motorcyle plate that says "RiceBnr" for "Rice Burner". It was on my Honda Shadow before I bought my hog. I have another Utah personal car plate, but I can't remember what it says right now, It's in the shop and I have to plow 16" of snow first before I can get to it.