I see alot of people with really huge accessories and i'm wondering how to do that since i have been to the salon and made them as big as i could but it's no where near the size of other peoples that have the same accessories

The scaling of accessories changes to a degree with body proportions. One particularly extreme example is if you are wearing the mini-ARKS Rappy Suit; because of the head size on it, it makes any head-based accessory large at default size, so increasing it to the max can make them huge.

Body size, height, weight, and or costumes are a big play in that. Some accessories are just big in general.

Ah thank you i guess i gotta go and use a salon pass to mess around with that stuff since my character is pretty skinny