White & Blue.
Black & Red.
Yellow & Orange.
Black & Yellow.
Red & White.
Grey & Black.
Different shades of the same colour.
All of these colour schemes are at random so that the questionees can choice for them selves or give me their opinion on what they think would work best. Overall from the results the most popular colour was black and yellow. I think that this is because they are bright contrasting colours which catch the eye, so when i come to making my products i think that this is a good colour scheme to use.