Magic item for me and my eidolon

[Shoga]

Hi, I am playing a summoner with a quadruped eidolon. (my mount). I was going through seeing about making a magic item to allow my mount to go into inns and taverns with me. I would think barkeeps and such would frown on a 4 legged critter coming in.

I was thinking like an amulet of Alter self. When my mount wasn't useing it, I would be wearing it. According to the magic item creation rules heres what I have.

Amulet of Alter Self

Craft Wondrous Item
Wizard 2nd level spell Alter Self
Caster Level is 3

continuous Spell level x caster level x 2,000 gp
If a continuous item has an effect based on a spell with a duration measured in rounds, multiply the cost by 4.

(2x3x2000)x4=72,000gp

Did I do this correctly? Seems a bit steep tho. Is there a better way for me to change my eidolon to bipedal?

Thanks

[Puma D. Murmelman]

Alter self's duration is 1min/lvl, so the price would only be doubled.

[Zephyr Runeglyph]

If you're going to delve into item creation rules, you could do what I did and negotiate a restriction-based cost modifier with your GM. That 24000gp (how did you get 72k? That math doesn't add up right even if you did multiply it by 4) can go down a considerable amount if, say, you only want it to work on Eidolons.

[Shoga]

Puma D. Murmelman wrote:

Alter self's duration is 1min/lvl, so the price would only be doubled.

oops, misread the spell. thought it said 1 rnd / level.

ok, so 2(2nd level spell) x 3 (Min Caster level) x 2000 (based on continous effect) x 2 (for minutes)

2x3=6.
6x2000=12000
12000x2=24000.

apparently I had a 3 on the brain when working the math.

good idea on the restriction but I was thinking about me using it too.

[Purplefixer]

Or you could simply take the idea of the Hat of Disguise (CL1) and substitute Alter Self for Disguise Self, making it CL3 and a second level spell, or 6x the cost of the Hat of Disguise: 10800gp. Or make it continuous for 24000gp...

But the Eidolon is intellient. No reason he can't renew the effect every three minutes...