I have a katana, roman gladius, and a naginata all near my bed. I've also got a display sword set not too far.
Improvised weapons however, I'm sure a shovel could be effective. If you are looking for things put together to make something, I would stick a knife ('ve got a good bowie knife around here somewhere) on the end of a pipe and duct tape it together to make a polesword. A stabby weapon wouldn't be good in a swarm of goons, but a slashy weapon could hit multiple foes in one go.
I also have a rifle with a bayonet I could use as a spear and a gun, twice the fun.