Nice stuff. I cannot wait to see more!
Now on to the lettering.
I simply used Window's Paint and a thermal label printer. These little printers are the type you see UPS/Fedex labels printed on, in which older models can be found on Ebay for very cheap.
Just be sure you get a USB model, if your newer computer does not have a serial port. Serial port models are a pain to get to work on a new system that is only USB.
I simply found the correct letter size and font and printed the information out on the labels. I then took a hobby knife and cut out the letters.
Thermal label printer paper is a sticker, so I peeled off the stencil I have made and broke out the ultra-flat black spray paint. If you do the stencil well, you won't even have to do any touching up. This technique woks on every type of ordnance you can imagine.
Since we were origionally talking about bomb fins, I am in desperate need of a slick fin for both a MK81 and MK82!!!!! :neutral:
Below is the exact image I used for my AN-M65A1.
I quickly revised my nomenclature on my AN-M64's early-war fin, thanks to the image you provided eariler. I downloaded the image, stretched it to size, printed and so on. The operation took just over a half hour.***
***After reviewing the aforementioned image, I realized my "AN-M109" is indeed too small! I had a long day at work yesterday!