Hmm… from the small range I have to choose from, I think I’ll go for
A tub of white willow bark capsules
A large jar of paperclips
A small, plush Tux.
I can quickly form the paperclips into a chain. The I throw the capsules under the zombies’ feet to put them off-balance, and while they’re distracted, I can tie them up with my paperclip chains.
When if that fails, I still have Tux for comfort in my last moments…
Oh, geeze, my work desk is terribly unprepared. /glances around ok, from items currently on my desk.
I guess I would take this extra long ethernet cable and spool it up to use as some low strength rope… um…
my laptop bag (yes, I’m cheating, there’s a pocket knife and a flashlight and spare battery and a phone recharger and a few other misc items in there).
annnddd this notebook, so that I could write a cool non-fictional book about the zpoc as it happens and be wildly rich after I survive.