Making tea is pretty easy: put the bag in, let it steep, take it out. But it's easy to forget to remove the teabag, which means you end up with a little too much flavour. Instructables user suvinks solved this problem by creating a little tea brewing machine.
The build here uses an ATTiny, a small servo, and a buzzer. Once you get everything set up, you just place your cup under the machine, and it steeps it for a few minutes. Sure, it's over-engineering a solution to a pretty simple problem, but it's cool nonetheless, especially if you drink a lot of tea.
ATTiny Tea Maker [Instructables]