For those thin vin tags a decent set of letters/numbers would do the trick....even a cheap set from Harbor Freight.
EDIT: You can take it to a trophy shop as they do a lot of engraving/stamping. Most likely they will do it with laser as that's how they do the little brass tags on the car club trophies....for probably less than 5 bucks.
Last edited by Achipmunk; 01/06/2017 3:59 AM.