are you able to show a photo or brand name of this transparency? Is it available from office works or the like? Thanks

I got it from ebay, didn't work very well though as the ink isn't thick enough, i.e. the printed sections are still semi transparent which doesn't work well with GIs anywhere near under them..

What I did instead was cut out a piece of perspex and then print onto photo paper, carefully cut it out to shape and then use clear contact (like we used as kids for school books) to stick the printed cutout to the underside of the perspex...  Worked OK, the only real problem was the photo paper I used was too thick, a thinner paper would work better, when I get a chance to do it again...

The cut out printed graphic, edited in photoshop to get look right...


The cut out placed down onto an upturned piece of contact


Placed the perspex on top and trimmed the excess contact, not perfect but thinner paper would work better I think!