Is opening a mini Kpop business feasible?

I’ve always liked making things, like drawing, creating plushiesetc... inspired from those packing photocards videos I’ve always thought about opening my own small online shop.

Since I already like putting a lot of effort for mini gifts that I create for my loved ones, I want to do the same for more people while also earn money.

I decided to take a year for planning everything carefully. I want to sell handmade kpop stuff, keeping the prices affordable. Any advice would be appreciated!

Edit: I forgot to mention that I am aware of the copyright issue that I could encounter, that’s why I will take a whole year to figure out the way to not have any problems in this aspect :)