Yup, going to have to say that was kinda dumb.  P1 or lower?  Man...
Well...since you're stuck now...
1) VAntAGE machine.
2) Home server.  I ran one off a 386 running Linux for some time.
3) Router.  See #2.
4) MP3 player.  Yes, a P133 will play MP3s.  Not much else, though.  Maybe a jukebox?  DOSCab might work, not sure what the minimum specs are.  Chris once asked me to try it on my 486 and  I never found the time.
5) ... okay now I'm coming up short.  I'd say thing of things to do with the cases, practice case modding or something.  I dunno.