[erik998]

In the US you can use a fictitious name dba "doing business as" name. You can also open up a bank account using a dba name. You may need to file taxes as a sole proprietor.

https://www.sba.gov/starting-business/choose-register-your-b...

I think this is called a "trade name" in other countries. Wikipedia has some examples for other countries.

https://en.wikipedia.org/wiki/Trade_name