Persona 3 the Movie #3 Falling Down had a great selection of merch for each of the four movie installments, including this Aigis tea cup from where she visits the hot springs.

Aside from the obvious cute, Aigis talks about her trip to Kyoto Onsen:
"I went to Kyoto, but I do not understand...

Is this the rumoured outdoor hot springs that I've heard about?  I infiltrated it successfully!  The effects are not working for me, You need to fix this immediately!!  I could only stay a short time so i went and bought Koromaru-san some souvenirs instead."  On the bottom of the cup: "The most important thing for me is to be by your side"

I think tuning Aigis's sensory responses is an immediate concern.   You can support her by warming this cup and getting her acclimatized to the heat while this is worked on.

Every day these items are harder to find and were never releases outside of Japan.  We do our best to make them available at a price that let's us build our archives and information while presenting a competitive price.
 
The P3M committee has the <3 for Aigis.
 
~Not available for Lettermail due to size~