While I could rant a bit about the jerk who removed the antenna from my car (I guess because I had CA plates in Oregon, or maybe the A’s antenna ball) that’d mean starting a Pit thread, and I’m more interested in how to go about replacing the thing. I have a '93 Ford Taurus, and it appears that it was pulled out, rather than snapped off or cut. Any help would be appreciated.
You could try calling in at your nearest Ford dealership’s service department. They’d be more than happy to help you out.
It seems many people tackle this problem by jamming a metal coathanger in it’s place. Not the prettiest solution but it must be effective or there wouldn’t be so many cars parked at my local shops with the triangular antenna.
I once put one it. It was easy. Just visit the auto parts store & get another one they come
with instructions. One of the big auto parts stores should have a huge selection of them.
I actually put in a rubber antennae so it wouldn’t happen again.
I second Thylacine’s suggestion as a stopgap measure. Our car currently has a coathanger sticking out of the space where the antennae should be. Yes, it looks tacky, and redneck-y, but it works until we get a new one fitted. YKMV 
I don’t know anything about the universalness of car antennae, but I do know that most parts for late 80s and early 90s Tauruses (Tauri?) can be hard to come by to say the least. If antennae are pretty much one size fits all, then a trip to the auto parts store’ll take care of it. Elsewise, it may take a trip to the junkyard.
– Dragonblink, who just helped her dad replace part of the front end of an '89 Taurus
Are you certain that the person who removed your antenna was a jerk?
Great One:
I once thought that somebody had ripped off my antenna. Upon later reflection though, I guessed that overhanging branches had done a job on it as I backed my car up out of a parking space.
I only mention this for preventative reasons.
flowbark, yep another reason I went with a rubber one 
If you try to replace it yourself, one tip to remember is to tie a string (twine) to the antenna wire at the radio end before removing the assembly. That way, when you pull the antenna/wire out from wherever it is, the string follows and gives you an easier way to thread the new antenna wire back to the radio.
I have a 95 taurus SHO with an automatic retractable antenna, I don’t know if that’s the same as yours (probably not, if you had an A’s ball on it).
But IF it is… Mine first broke by getting stuck in the up position and THEN someone broke it off. I went a while to replace it because the estimate was around $200. What I didn’t know is that I should’ve immediately plugged up the hole where the antenna was. When I ended up replacing it, water had seeped in and rusted the motor for the antenna resulting in a replacement of the entire motor and antenna mast rather than just the mast. Mucho dinero. Also, its a pain to replace on your own as the design requires you to remove the entire front quarter panel to get at it.
So if you have an auto antenna, PLUG THAT HOLE!!!
Consider what I did with my old Mercedes. I found where the wire from the radio to the antenna travelled through the trunk, then attached a bunch of wire to that point and left the wire in the trunk. Actually worked decently, except it kept coming undone. But I suspect someone more mechanically inclined could have made it work.
As a side note, also do like the guy above said… plug the hole to prevent rust.