I don't know if you have any yet, but for cryptidcore I think this should work. (I just got these from google lol)

https://www.google.com/shopping/product/1?q=led+alien+sign&prds=epd:18328495773233359476,eto:18328495773233359476_0,pid:18328495773233359476&sa=X&ved=0ahUKEwjKiff77sv2AhWLLc0KHT0EDN0Q9pwGCA4

Maybe some polaroid's for adventurecore, but do like, area 51 shops for the pictures so it fits in with the others, or like, a forest. I think the best camera would be instax, here's a link to one that would fit the aesthetic. (might be hard to find film, though,)

https://www.urbanoutfitters.com/shop/fujifilm-instax-wide-300-instant-camera?inventoryCountry=US&color=012&size=ONE%20SIZE&type=REGULAR&quantity=1

You could hang them with some curtail lights, or on a pinboard or maybe both?

https://us.shein.com/Remote-Control-Curtain-Decorative-String-Light-With-300pcs-Bulb-p-2591371-cat-3386.html?url_from=adplashlamp25210427971one-size&gclid=CjwKCAjwlcaRBhBYEiwAK341jay-dwwWSGR_aj1xVjo1ltmaKxselspyjyPw_1YsF1cioEEQO0CQ4BoC6O8QAvD_BwE

https://www.google.com/shopping/product/9785907193469599388?q=red+pinboard&prds=epd:15939010407877638479,eto:15939010407877638479_0&sa=X&ved=0ahUKEwjYgNKn8cv2AhXRW80KHXeEBMwQ9pwGCBQ

Remote Control Curtain Decorative String Light With 300pcs Bulbus.shein.com

Fujifilm Instax Wide 300 Instant CameraUrban Outfitters

And I saw eyes were common for feralcore so I thing this would be good :)

eonsignslights.com/products/eye-neon-sign-light?currency=USD&variant=32482297151593&utm_medium=cpc&utm_source=google&utm_campaign=Google%20Shopping&gclid=CjwKCAjwlcaRBhBYEiwAK341jWBpjiyUj7X96s731Kp8LizxcYCh5HsDT0NX3c9nxAxUmDa8qVWBCBoCsCAQAvD_BwE

(you'll have to click on the links :( )