Since particle effects are now being used and appear to be pretty darn stable, I was thinking it might be cool for a weapon to have something happen to it once it's been blessed. For example, weapons blessed with ogma could have little poison bubbles orbiting around it, while one with Govannon could have an aura of smoke that trails behind the person as he/she walks. (Since Govannon was a god of blacksmithing.) Brigid users could possibly leave behind flowers instead of footsteps, and Diancecht users could have wisps of holy spirits floating around their weapons. Bile users could have little swarms of flies around their weapons, while Balor users would have little pulsing red flames that slowly rotate around part of the blade. These are just suggestions, but it'd be a really neat application of the particle stuffs if used.