Of course, if you don't want any, or don't have a sense of humour, they won't cost anything.
My sense of humour may be different to most other people's, but don't worry, that doesn't make you a bad person.
British humour takes some getting used to if you aren't used to it, and I've had plenty of time to work on mine!!!
Safety decal
Chain guard decal
Explanation decal
Another explanation for the rivet counters
What we say when someone tells us what parts cost
Yorkshire cooling system upgrade