That's actually a great idea Some overhead sheets for printers are quite matte to make the ink stick. If yours were clear I'm not sure why it wouldn't work with a bright enough star.
-------------------- Best,
Sander
C11-HyperStar on Atlas EQ-Q driven by EQMOD
William Optics M110 With FR-III/TRF-2008
DS2090 guide scope
QHY-8, DSI-Pro and DSI cameras
watec 802h video camera with KIWI OSD