What's a fun office prank? Christmas themed if possible.
Boss is going away for a few days and we're trying to create a fun surprise for when she returns. Our offices are all shared so it has to be limited to a small area and can't impact other people toooo much.
We did that one year. Wrapped the directors office in tin foil. Some madlad even went and wrapped every pen and pencil in the draw separately then wrapped the damn draw.
One year, we got a tank of compressed air and a bunch of balloons and stayed after work and literally filled his office with balloons. Floor to almost ceiling. Not only was it hilarious, but popping the balloons the next day was a lot of fun, and clean-up wasn't too hard. You absolutely need compressed air for this, and even then it took an hour or so to do.
These days, I guess it'd be seen as environmentally wasteful; balloons aren't recyclable, I think. Plus, it only works if she has dedicated office with a door. If it's still an "office" but shared with another person, you could still get their permission; maybe they'd agree to hotel in a conference room until the balloons are popped.
Buy three non-venomous snakes from an exotic pet store. Paint their scales with labels #1, #3, and #4. Hide them in one of her desk drawers. After she overcomes the initial shock, she'll spend the rest of the day wondering where snake #2 disappeared to.
If you can access her computer, you could mess with the autocorrect settings and replace common phrases with Christmas carols. Like, change her name to 'Santa Claus'. Or change 'Kind regards' (or whatever she signs off emails with) to 'Jingle bells', etc.
Without detaching the pepsis from the band that allows them to be sold six per pack, empty them and fill them with coke, then say you bought a six pack of pepsi. Or do the reverse.