I am working on a paper for school and need to find the proper brand /entity for 50 slogans. Evidently I do not watch enough television and can only come up with about 25 of them.

###

Here are some sites for you:
http://en.wikiquote.org/wiki/List_of_advertising_slogans
http://www.adslogans.co.uk/hof/
http://advertising.utexas.edu/research/slogans/index.asp
http://www.textart.ru/database/slogan/list-advertising-slogans.html