for the necromancers/evil priests
I had an evil cleric for a few sessions that loved to use zombies as minions, warriors, whatever... The rest of the party were good guys so they werent too happy about my zombies in the first place. Then after it became a running theme in-character to make fun of my smelly creations and the DM actually had us start losing surprise rounds because the zombie smell gave us away I came up with this one for my character.
Grave Perfume
Alteration
Level: Sor/Wiz 0, Clr 0,
Components: V, S, M,
Range: close
Target: 1 per caster level
Duration: 1 hour per caster level
Saving Throw: Will Negates (Harmless)
Spell Resistance: Yes (Harmless)
Anyone the spell is cast on smells faintly like lilacs (traditional graveyard flower in that world) and has any bad smells totally cancelled out.
I loved it, actually used it on myself. It got rid of the bad smell of my zombies and lent the whole party a creepy gothic air that the good guys hated... Nice when we ran into some troglodytes too.