What is My Husband Creating for You?

My husband likes to fix things - computers that have broken, cupboard doors that don't close properly, the arm of my reading glasses when it gets too loose.

So it came as no surprise that when I told him I had come across a problem with my writing, and couldn't find a suitable solution on the Internet, he said that he would create what I was looking for.

We have a prototype and I am so thrilled with it that I want to share it with everyone...but you'll have to wait until it is finished. I will post it very soon.

Can anyone guess what he had made for me?