I am a crochet designer of mainly amigurumi patterns. Once I have an idea of my next amigurumi design, I have the ability to visualize it in my mind on how to design it (without the need to sketch it out). In other words, I have a design room in my mind palace.
Online-wise I only sell my crochet patterns, not the finished products.
My crochet pattern stores:
Etsy store: www.etsy.com/shop/JBcrochetwiz…
Ravelry store: www.ravelry.com/stores/JBcroch…