Baskin Robbins BR logo has a 31 in it to represent the 31 ice cream flavors they are known for. :)

Outback Steakhouse logo is the Australian Terrain to represent, well, Australia. :) Bonus point, inside of the Outback Steakhouse app, there is a Kangaroo Waiter! :lol::crazy:

I think McDonald's Logo is supposed to be fries making an M. :p

FedEx has a logo that has an arrow between the e and the x, implying that FedEx is well, fast. :)

Amazon has a smile between the a and the z and also is implied they have everything from a to z. :)