ranger using bear traps (APG). they have a dc 15 perception to find them, but thats to low past level 5. here are my questions:
1. can i use disguise to increase the dc for the trap? i read the rules but i didnt see a disguise for objects.
2. can i add an enchantment/spell to them, like alter self or polymorph any object, to change the perception dc.
3. if the 2 previous ideas dont work... how can you change the dc for the perception?