Hardware Where can I buy a replacement [SELECT/HOME/START] sticker for an Old 3DS?

[NyxNullify]

Hi. I recently purchased a JPN non-XL O3DS from eBay. Upon recieving the console, I noticed the START portion of the [SELECT/START/HOME] sticker was caved in. The button still presses, it just looks really offputting. Is there a procedure to remove this sticker and put a new one on? Bonus points if you can point me in the right direction for a new circle pad rubber cap.

(See attached photo)