Sah here at Blue Apples colours with Sharpies A LOT, and so always buys new pen sets to replace her favourite colours as they run out. There are colours she does not use as often and so has a ton of (unused of course) pens. You can add on these additional colours to your order of Zehya's colouring book.
 
Please do not add these to your order unless you are purchasing the colouring book.