I checked out this item pack, and most of these would be a great addition to the original game(Except the bubbles since they really do not belong and never will).
Many of these items do no work for the other species though as mentioned by you guys earlier. But I must say it feels a lil sadz that a male lion still can't wear a tie without it getting nommed by the mane xD
However though, there's a good amount of items that work well, and to be really honest they should be put into the game if possible.
Another thing is that items that just work for only canines and only felines could maybe be edited to suit both?
F red bracelet Left
C red bracelet left
Etc.
Though of course, if these items were put into the game kov could program them so if you have a feline character and equip a certain item for it, it would automatically choose the one that work without extending the list with all tons of things.