I hope you dont mind me posting the link, just trying to help
I will happily remove at your request.
i request you dont remove it

feel free to add the value, its "freedom of speech" world

i just downloaded and watched your video Rob i havent seen it before because its about milliOhm meter, kudos

you showed some aspects in printing art such as scaling to get the right output. i didnt aware about laminate technique mentioned in this forum (i textually searched maybe i missed). you showed the finished laminated label but you didnt show how to stick the laminate to the paper, it takes some "art" to do that and i believe thats the most important part we both did not demonstrate

for smaller size we can do with hand (with proper "artistic" finger sweeping direction) but for bigger and better result we use cold laminator, also there is some art and experience when doing it, otherwise we'll get bubbles or wrinkled laminate. for bubble the easy fix is to punch the center of the bubble with sharp object (i used tip of my paper knife) and then rub the bubble from the side to push the air through the hole, if you are lucky the bubble will dissapear. and one more comment Rob. you can leave the center of your cutted out label/panel white instead of all black (it will go to the dustbin anyway) you can save some black ink by doing it and hence make the world greener

now about white object or letters... an old friend of mine has made me some labelling sometime ago, he got this rotating handheld lettering punch device (i dont know what its called even in my language. i googled letter punch i got different tool set), he got somesort of stiff red tape roll and punch the letter manually and cut. i still have the lettered tape sticked on my PC (attached picture), the red tape will be streched and leave white mark on the letter. there's another type of lettering in plastic usually found in art shops, we scratched the plastic from above onto anything, the white letter will remain on the object, we can later spray or put adhesive tape on it to protect it, i usually did this during kid time. and lastly, printing from home using simply an inkjet... make a graphics or white letter on black background, follow the steps, done! the paper will give you the white letters

YMMV.