There is something called "Fair Use" (legal term/ action I am intimately familiar with)
http://www.copyright.gov/fls/fl102.html
If a phrase, passage, musical composition, logo etc (and more) is known throughout a specific part of the world and is not used to profit from (directly or through the advancement of your business by using such copy written/ trademarked materials) then there may be little legal recourse for the originator/ creator of those works. There are MANY MANY ways to sue someone even when "Fair Use" is argued.
Whether or not you are using someone else's creation, handwork, gift of art, talent etc to make something you want to wear or have in your living room, etc is an issue that will have many people opining. Some of these opinions and comments won't be what you want to hear.