Thank you all for all the suggestions you have given me.
I DO plan to use some of them, but with as many as I am
making I know that I will never use them all.
My oldest daughter who also got hooked on making them
at the same time I did wants to make a summer quilt with
a sheet as the backing. She wants the "large" size (not jumbo)
and she wants ALL of the yo-yos to be made with fabrics that
have pink, as long as there is pink in them she wants the fabric.
So I am helping her to make them also, but I get tired of working
with fabrics that has pink, so I switch off to making other sizes,
and colors.
I recently purchased a magazine (forgot name at the moment)
that had 3-4 projects with yo-yos, and I have many other ideas
as well, but still if I made 3 of every project on my "to do" list
I don't think I would ever use all of them up.