Your motto could be: money doesn't grow on trees, but it does sit in our wallets.
I am 15 years old and thinking about going into marketing, what do you think?
You can try the bussiness/domain name generator
those websites can give you some ideas
http://www.panabee.com
http://impossibility.org
http://www.dotomator.com/web20.html
http://www.bustaname.com/word_maker
I have been making custom duct tape wallets and bags and other accessories. But now I am branching out into making leather and felt wallets and bags and even making cosplay accessories and possibly commission some costumes in the future.