My dad's birthday was Monday, so last week, I put my crafting brain to work. He, of course, insists that we shouldn't buy him presents, but he can't object too much to homemade things.
I made these monogrammed handkerchiefs from the non-worn parts of a really nice cotton sheet that I got at the Goodwill.
The edges are finished with a rolled hem on my serger, and I did the embroidery in a backstitch with three threads of embroidery floss in royal purple (his favorite color).
The gift was a success, and he tells me he'll actually be using them, not just saving them for "good". I was happy to hear that, since he's a pretty notorious saver of things.