Specifically the pet is my character from Inquisition (female Dalish elf archer rogue), but I can use things that might reference the other DA games too.

and come to my mind when I think of DA. They both have a bunch of fanpets which might inspire you c:

Good luck finding some items! I recently got my own fanpet for my favorite character in Inquisition but finding items for him hasn't been too much of an issue mostly because finding spirits, books and wolf related items tend to be easy but I am having trouble finding actual tributes to Dragon Age, myself. All the ones I find are not possible to get. :S