Direct Mail Marketing Designed Pieces

I am looking for a marketing expert that can design direct mail marketing materials for my company. I will need a variety of sizes. This project will be ongoing until we have about 20-30 separate marketing pieces. Bids should be based on the price for each piece of marketing material.

- Postcards
- Oversized Mailers
- Regular Mail
- Etc....

Please provide examples of direct mail marketing material that you have done in the past for consideration.