Solder third hand with screw mount base

Have you thought about building one?

Here's a really nice one made from generic "loc-line":

Here's an interesting one which uses a PC fan as a base, to blow the soldering fumes away:

...and here's a dead simple one that you could probably make from junk in your electronics stash:

All of them are very inexpensive; I think if you could somehow combine the first version with the second version, you'd have one heck of a solution there. It would be unique, while useful. Best of all, she'll always remember who made it for her, with love and attention.