What would you guys do with one servo?

Got any ideas what I can do with a servo? --Singular

Not the ones from the examples because I already did those.

Have it flip a light switch up & down at random intervals when you're not home so it looks like you are.

Make a useless machine. https://www.youtube.com/watch?v=Z86V_ICUCD4

small or large ?

if your TV is on a lasy susan, you can make an IR receptor to receive some un-used button on your remote to move the TV a little to one side or the other.

connected to a rotary switch, you could have your ceiling fan go low or high.

open a window

water a plant. little bucket, dip and dump.....