Car bumper stickers are a trendy way to let somebody see what your personal interests are, but also the places you have visited. There are some people who like funny sayings that particular sticker was printed on them, and will put them on their cars to make other motorists smile.
No matter what your personal interests are, it is likely there are various types of 4wd bumper stickers, car signs and window stickers you can put on your car to show them.
Many people, who bought their first sticker, might buy them to cover scratches or dents they get on their bumper. There are cases where some people will buy it to show their interest, but there are also people who use it for practical purposes, which may include something to differentiate their cars, when in a large parking lot.
Those who belong to a particular club or association may indicate their personal interests and affiliation association by displaying them through the appropriate stickers on their bumper.
There are many entities that will buy custom bumper stickers for their particular affiliation or club and they might sell them for fundraising efforts.
Normally there is a lot of interest in this type of car bumper stickers because they are affordable and can show pride of membership for those who want to show their personal interests on the bumper and want to support the association and the club they belong to.