My missus is into "scrapbooking" . I'm sure I've seen these or something very similar in the scrapbooking shops she's dragged me into . I think they call them "rub-ons" or something ....  .

Do they leave the numbers / letters raised slightly off the PF ??

Hi Cruiser, no, I am so impressed with these they are so flush to the playfield I reckon they would compare in height to the original screened on details. That was the worry for me, I honestly thought that being so thin, the clear-coat was going to fry them off the surface. The result on the test board was excellent.