would tiny lettering on dyno be the sort of thing, I have a machine that does weeeny sizes and you can do black on yellow black on white etc…it’s hand help and they are sticky.

I have this one: https://www.zoro.co.uk/shop/office-s...SABEgK6EPD_BwE

you can have a go with this one if you want?

if you want something more bespoke then speak to monster Dave, I have his number.