Possible but not very safe. Would need appropriate fuse in plug and a decent length of cable but main danger will be from lamp breaking and exposed live conductors.
Mains inspection lamps are quite cheap. In UK Halfords do one for £3.00
If you want elegance on a budget Argos sell two floor uplighters for a mere £9.32 saving £0.06 on the single price!
Peccavi, January 2009