Just an idea for the velours might be to make crazy quilt Christmas stockings with embroidery and lace. I've done that with jewel tone velvets, lined them with satin and they turned out simply smashing! I've done corduroy quilts out of my toddler's pants (she's now 37) and used batting, but I'm in northern New England. I would use a flannel 'liner' if I were in your climate, or even just a cotton sheet. It helps protect the seam allowances from rubbing together on the inside.
You definitely need to hold on to them for another 20 years unless you want to send them up here to me!! :lol: