Creative/Humorous Writing for Ecommerce Site Ads

We need several bits of copy written for classifieds, small online ads and text link ads. Our ecommerce site has a very casual,easy-going, simple & fun feel to it and we want to carry that over to our advertisements and copy. For this project, deliverables are: - (1) Classified ad copy - about 10-15 words - (1) Web ad copy - about 20-30 words - (1) Text link ad - about 8-12 words Creativity, originality and humor is a must. Please provide short sample for a generic 'auto repair' shop as a test, or provide previous work for review.