Here are the items I can point out (couldn't find all of them):
Number One, Lord of the Pit, My little Unicorn, Gnawed Leaf, Mom's Wig, Polyphemus, Steam Sale, Cerimonial Robes, Mutant Spider, Host Hat, Habit, Eye Drops (maybe? Could be Tropicanide), Blood of the Martyr, The Mark & Pyromaniac.
Also, really like the drawings! 10/10 :)