I use an ancient dot matrix printer, so my ransom notes can't be traced. I also have a very unused Inkjet printer/scanner (the scanner comes in handy at the victim targeting and information gathering stages), which can be traced like laser printers - they'd only get me into trouble.
If those pre-printed aluminium/alloy labels hadn't been available, and if I had a laser printer (they're as bad for you as smoking apparently, and I don't want to get even more addicted, and besides, they look hard to light), I might have tried
@saneagle's method, but totally understand the nervousness at the prospect of 225°C fuser rollers coming into direct contact with sellotape. I'd not worry about the aluminium tape (not plastic surfaced "Duck"/gaffa/duct/gaffa duck with a clipboard and Range Rover tape - real gaffa ducks drive Range Rovers, especially aggressively mating Mallards), because it's aluminium surface is heat resistant - pure aluminium melts at 660.3°C. If I was going to stick the aluminum tape with it's backing to paper, to laser print onto, I'd probably stick it in place on the sheet of paper using double sided sticky tape, so plastic never comes into direct contact under "precise pressure" with 225°C fuser rollers.
Alternatively... like the label I bought pre-printed, there are blank metallic labels of various shapes and sizes puportedly designed for laser printing. Maybe print a few sheets, and sell bespoke labels to forum members? Or you too could become an ebay millionaire?
https://www.amazon.co.uk/METALLIC-Label-Self-Adhesive-Addressing-Printable/dp/B004LT7N24/
This metallic "waterproof" label is supposedly printable with inkjet or laser, and could be waterproofed with a clear vinyl layer. Large enough to print and cut out several.
Avery:
"Guaranteed performance in all popular Laser printers."
(don't use this if your laser printer is unpopular)(why is your laser printer so unpopular?)(why did you buy a printer with such propensity for unpopularity anyway? It's madness)(don't buy these labels, if your printer has no friends)
Ebuyer stock more than 20,000 products for the home, office, or school from leading brands. Next day delivery and 0% finance options available.
www.ebuyer.com
"Save time with user-friendly templates and software"
I bet you wish you'd bought a Bafang!
p.s. Get sperrings wong, for aufentipirriey.