Wow Budoc, nothing like having your family threatened to 'get your goat'!
Improvised weapons I have used.
Sock Full of Change (pre prepared, but not a ready made weapon)
Pub ashtray (heavy thick glass)
Coin Roll (again, pre prepared)
Improv weapons that I think may work.
Bunch of keys (though I suspect at the expense of a couple of metacarples)
Rolled up magazine (thrust up hard under nose is the logical target if possible)
Mag light torch (I carry a 6 cell at work and in the car, but fortunately have never used as a weapon)
Improv weapons I would not use.
Bottles or drinks glasses. For some reason I wouldnt/dont have a problem causing head trauma/internal bleading with blunt objects, but do have a problem causing flesh wounds/blindness