I don't know of any practical way of making quality narrow-band filters on a flexible adhesive film - such filters require multiple incredibly precise layers to be placed, and I imagine trying to do this on a flexible (adhesive-backed!) substrate would be a major challenge.
A more practical method is to just to mount a standard astronomical filter into an adaptor that mounts to the front of your glasses / binoculars / whatever.
A really simple method to fit an astronomical filter to a camera or pair of binoculars is unscrew the barrel from the bottom of a spare 1 1/4" or 2" eyepiece. Cut a matching hole out of a spare lens cap, and glue the eyepiece barrel to the front, with the filter threads projecting outwards - you now have a reduced aperture lens cover which will accept any standard astronomical filter. (If using binoculars, you can simply leave a lens cap on the second objective, or make two adaptors - but you will need two filters for best effect.)
You can easily make up something similar from sturdy cardboard or plastic sheet to fit onto just about anything.
You can also buy filter adapters to suit standard DSLR cameras - see this for example:
http://www.rspec-astro.com/dslr-adapter/
It shouldn't be too hard to make a filter adapter for almost any purpose. (You could even make yourself a filter-monocle, for a great "steam-punk" effect at star parties!)