Is there a way to increase your pet's treasure size?

I got one random event for it before, but I want to know if there is an item I could use?

Thanks~

There are 2 items that will increase a pet's treasure chest:

1. Magical Keepsake Box -- gives 1-3 spaces (Millionaire Center)
2. Multi-Compartment Keepsake Box -- gives 10-13 spaces (Cash Shop)

The Pet Zapper 2 can also do it, but that's really chancey.

There's one new one too. ^_^ If you get a loyalty box from being on the site two years (and every year after), you can pick a totem that'll give at least 10 spaces to ALL you pets.

Thanks! starts saving up for Magical Keepsake Box (don't think I could get anything from the cash shop)

I think that's gonna take me a while... o_O Thank you though~