You can take them apart with the right tools, they have a weird screw head but any decent pc repair kit should have the right attachment. You can actually remove the platters, generally doing that and tossing the lot in the recycle place is fine, good luck to anyone trying to put them back and get it to work but for an extra measure give the platter a little buff with sand paper or just scratch it good.
I've done it a bunch of times and it is actually kind of fun
If you have a drill press you can just drill a hole through it. if you're my Dad you take it out to the back 40 and shoot it .