Ok, so I'm throwing my item into the mix. Thoughts? Suggestions? Severe issues?
Discerning Eye
Originally spun by powerful abjurers, these glass orbs have found more fame than initially planned. Designed as a magic locator, they have become invaluable to adventurers of all kinds and even more so to those whose jobs require that they daily discern the truth. These orbs detect any and all magic brought within 40 feet of them and shimmer slowly through each color as they encounter additional magical sources. The color remains constant should no new sources enter its area, but at least one remains. The most unique aspect of the orbs is that they possess the power to detect all magic regardless of any protections such as magic aura, globe of invulnerability or even lead.
As a free action you may specify targets for the orb to ignore or react to. Finally, 3/day the user may see as though under the arcane sight spell. While arcane sight is active in this way the orb ceases to respond to magic as normal.
Moderate divination; CL 10th; Craft Wondrous Item, arcane sight, permanency; Price 120,000 gp; weight 3 lb