Sometime, you may be in a position where you need a pair of cufflinks. Nothing fancy, perhaps, but some cufflinks. Starting with a bit of Romanian cord, made perhaps from embroidery floss, which comes in lots of colors, you can tie a couple of decorative knots in it, about an inch apart.
I tried it with two different colors of floss, to see which I would like better on the blouse.
Once you do that for as many cufflinks as you need, snip the excess, undo enough of the cord to have loose ends to fasten the ends in between the knobs, and tuck in. It is good to start with a long bit of cord so you have enough to manipulate to make the decorative knot. I ended up with a pair of blue ones with a simple knot at each end that was still small enough to fit through the buttonholes.