I needed signwriting done on my van for my business. I found Diverse Sign online and likes their work. They worked with me to fit my budget and based on PDF files from my business cards and a mockup from my designer, did a great job advertising my business on my van. It is far more than just my name on the door, the whole van is very eye catching.
I get lots of complements from it and it has paid for itself 5 times over in the first 12 months.
I will definitely be using them again, perhaps as I expand to a fleet of vans.....here's hoping.

Approximate cost: $1000