Magpie oracle set ideas

I've been (very slowly) gathering trinkets for my Magpie oracle set. I've got items for the onvious themes like love/my partner (an acorn), travel/change (a coin), protection/agression (a blackthorn), home (a snail shell), illusion/trickery (fools gold), etc but I feel like it's missing themes. I could look at a list of oracle/tarot card meanings, but that does not feel right. I found the current items (and their meaning) while out an about, but now i'm stuck.

Does anyone have a similar oracle, don you have tips on items or how to ise them? Or idea's of items/meanings that are useful in divination like this?

Right now I get the same type of 'responses' everytime, because the number of items is pretty limited..