Eco Travel Lid

Here is a sweet tutorial with great pictures showing the easy steps to making this handy travel lid for your bowls and dishes when you're travelling to picnics and BBQs this summer. Once I finish the projects that I already have fabric purchased for, I think I may try this baby out.

What do you think? Would this make a good teacher gift? I think teachers must get a lot of useless crap as teacher gifts. This is super handy, but is it too utilitarian/not-related-to-being-a-teacher for a year-end teacher gift?