Hobby/business

So I really want to buy a Cricut to make fun crafts but I want to open a craft store to help offset the cost and possibly allow me to reduce my work hours.

Infertility has affected me and my family and so I'd love to sell things like onesies and such for rainbow babies and IVF/IUI babies, as well as shirts and socks for moms and dads.

However, I want to know what OTHER people want to see from a craft/personalization business. What types of things do you wish you were able to find/source?