So many shirt buttons

I save shirt buttons! I can't bear to throw them away. There is no way I would be able to use all these unless I opened a shirt factory. I have used some decoratively - that used up sixteen! I used to save zips too, but I have cured myself of that by not dressmaking any more. However I also confess to saving those little ribbons that they sew into women's clothes to stop them falling off the hanger. I'm sure they will come in useful one day. Any ideas?