Selling Homemade Toys

I am a foreigner and living in Japan with a dependent residence status. My husband is also a foreigner and working in a company. I am wondering some ways to earn some money. I have made few attractive toys for kids in my free time and thinking to make more toys. Can I sell those homemade toys to some shops around Japan? Should I need to some particular type of visa for it? Please advise. Thank you.

You don't need to change to a different residency status and if you are in Japan as a dependent you probably wouldn't be eligible for one anyway. You should seek permission to engage in activities other than those permitted by your residency status. In other words you should immigration services. You will need to return a completed application form along with supporting documents (gaijin card, passport, information about work, etc.). Then they will give you a decision when they have processed everything.

when you sell it occasionally, you don't need to have any permission.
but, if you want to start a business by yourself, you need to have a permission.

If you sell on handmade goods online markets like Etsy or Creema (many people do this as a side business/hobby to make a bit of money), if you make over a certain amount of income, those will be subject to taxes, but it is likely to take quite some time to get there.