StarChild hej!
Rick and JAICOA give you excellent advice. not that Siguy and Mr Q don't.....
i remember...as a child, we used to hold unexposed 35 mm Kodak to our eyes! ha! watching solar eclipses, amongst other things...those were the days....
As JAICOA says...get a couple of sheets of Baader paper / film. comes in A4 sizes. here in the Uk costs approx gbp 15 per. in the US i expect, half that...
It's like kitchen foil, wonderful silky feel to it.....you can perhaps buy it from your local equipment dealer(s). and from your neighbourhood art shop get some heavy paper, heavy grammage. may be like thickness of a paperback cover.
size it, cut it ...like a tube to fit your 'scope's objective. and not forgetting the
finderscope's objective too, wrap the requisite size of Baader over it, sellotape it ...voila...one, hopefully, long-lasting solar filter. ....and you could shoot some pics too....not forgetting to share
you could make a couple of them for your binoculars too! and for you camera lenses as well.....
that's my tuppence worth done....
have a nice weekend
best regards