Sadly I don't have access to a hand scanner and I know that should be the ideal. For the circular decals, it has the same size of the saucer cap (which I have some spares here), so I've traced it in a paper, and scanned it as a tiff (600 dpi) image.
For some reason I can't attach .tiff files here, so I created a folder in my Google Drive and stored all images (and the scan) there, both images in HEIC and TIFF image formats are there, if you can take a look into it.
I've tried to measure all as best I can, and can (re)measure it if needed.
The link for Google Drive its this one.
Maybe this can be useful to @Andy B also (if his not got the decals elsewhere yet).
I ve received today the customs apron decals and they are amazing.
The gold vinyle is realy good and the ring is incredible.
the quality of the print also ..
Hows the new r-type updated colour cpo coming??
Can you make some better apron decals for stranger things pro ? As the ones on it suck balls