I thought I had seen a similar thread a while back, but I went back 25 pages (into October 22) and didn't see it. Feel free to add odd stuff you come across. If someone does find an older thread on the same general topic, I'll ask the mods to merge them.

I know we've all come across some curious things either while riding bicycles, or working on them. Recently, I was trying to tighten a saddle onto a seat pin so that it wouldn't swivel so easily. None of my wrenches could get a good purchase on the nut though.