Click the topic you want. Most logos can be recoloured and printed as colour or mono. So don't be put off if you like one but find the colouring too bright. Once a graphic is being used for someone I won't use it for anyone else, even in different colours.
To show you what can be done with edited graphics look what happens when they are recoloured, rotated or duplicated ... I don't often use graphics as they are.
