Help me find these buttons

[bruffin]

I found these in my mil button box so could be really old.
They are perfect as owl eyes and i am knitting lots of owl motifs hats gloves for xmas. They are 15mm with two holes and clear plastic,otherwise what would be a good alternative.

Thanks

Have you tried Duttons for Buttons? They have thousands of buttons. If you email a pic they may be to match.
www.duttonsforbuttons.co.uk/index.html